44455920 has 40 divisors (see below), whose sum is σ = 137814096. Its totient is φ = 11854848.

The previous prime is 44455897. The next prime is 44455921. The reversal of 44455920 is 2955444.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44455921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92377 + ... + 92856.

Almost surely, 2^44455920 is an apocalyptic number.

44455920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44455920 is an abundant number, since it is smaller than the sum of its proper divisors (93358176).

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

44455920 is a wasteful number, since it uses less digits than its factorization.

44455920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185249 (or 185243 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 44455920 is about 6667.5272777845. The cubic root of 44455920 is about 354.2500069310.

The spelling of 44455920 in words is "forty-four million, four hundred fifty-five thousand, nine hundred twenty".