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44278740 = 2232511219107
BaseRepresentation
bin1010100011101…
…0001111010100
310002022121000100
42220322033110
542313404430
64221014100
71045235352
oct250721724
9102277010
1044278740
1122aa3300
12129b4330
13923424c
145c487d2
153d49960
hex2a3a3d4

44278740 has 216 divisors, whose sum is σ = 156854880. Its totient is φ = 10074240.

The previous prime is 44278723. The next prime is 44278769. The reversal of 44278740 is 4787244.

44278740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 44278695 and 44278704.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 413767 + ... + 413873.

It is an arithmetic number, because the mean of its divisors is an integer number (726180).

Almost surely, 244278740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44278740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78427440).

44278740 is an abundant number, since it is smaller than the sum of its proper divisors (112576140).

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

44278740 is a wasteful number, since it uses less digits than its factorization.

44278740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 36.

The square root of 44278740 is about 6654.2272278605. The cubic root of 44278740 is about 353.7787567095.

It can be divided in two parts, 44 and 278740, that added together give a square (278784 = 5282).

The spelling of 44278740 in words is "forty-four million, two hundred seventy-eight thousand, seven hundred forty".