44749520 has 20 divisors (see below), whose sum is σ = 104042820. Its totient is φ = 17899776.

The previous prime is 44749519. The next prime is 44749567. The reversal of 44749520 is 2594744.

It can be written as a sum of positive squares in 2 ways, for example, as 12759184 + 31990336 = 3572^2 + 5656^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279605 + ... + 279764.

It is an arithmetic number, because the mean of its divisors is an integer number (5202141).

Almost surely, 2^44749520 is an apocalyptic number.

44749520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44749520 is an abundant number, since it is smaller than the sum of its proper divisors (59293300).

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

44749520 is a wasteful number, since it uses less digits than its factorization.

44749520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559382 (or 559376 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 44749520 is about 6689.5082031492. The cubic root of 44749520 is about 355.0281535564.

The spelling of 44749520 in words is "forty-four million, seven hundred forty-nine thousand, five hundred twenty".