44940640 has 24 divisors (see below), whose sum is σ = 106172640. Its totient is φ = 17976192.

The previous prime is 44940619. The next prime is 44940647. The reversal of 44940640 is 4604944.

It is a super-2 number, since 2×44940640² = 4039322247219200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44940647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140280 + ... + 140599.

It is an arithmetic number, because the mean of its divisors is an integer number (4423860).

Almost surely, 2^44940640 is an apocalyptic number.

44940640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44940640 is an abundant number, since it is smaller than the sum of its proper divisors (61232000).

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

44940640 is a wasteful number, since it uses less digits than its factorization.

44940640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280894 (or 280886 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 44940640 is about 6703.7780392850. The cubic root of 44940640 is about 355.5328637139.

The spelling of 44940640 in words is "forty-four million, nine hundred forty thousand, six hundred forty".