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44408480440 = 2351110212011
BaseRepresentation
bin101001010110111100…
…111010001010111000
311020121220101112202211
4221112330322022320
51211422032333230
632222335504504
73131324566312
oct512674721270
9136556345684
1044408480440
111791947a705
128734388134
1342594c457c
142213c927b2
15124da4842a
hexa56f3a2b8

44408480440 has 16 divisors (see below), whose sum is σ = 99919081080. Its totient is φ = 17763392160.

The previous prime is 44408480423. The next prime is 44408480449. The reversal of 44408480440 is 4408480444.

It is a super-2 number, since 2×444084804402 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 1110212011 = 44408480440 / (4 + 4 + 4 + 0 + 8 + 4 + 8 + 0 + 4 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 44408480393 and 44408480402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44408480449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555105966 + ... + 555106045.

Almost surely, 244408480440 is an apocalyptic number.

44408480440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44408480440 is an abundant number, since it is smaller than the sum of its proper divisors (55510600640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44408480440 is a wasteful number, since it uses less digits than its factorization.

44408480440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110212022 (or 1110212018 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 40.

The spelling of 44408480440 in words is "forty-four billion, four hundred eight million, four hundred eighty thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 1110212011 2220424022 4440848044 5551060055 8881696088 11102120110 22204240220 44408480440