45904478 has 32 divisors (see below), whose sum is σ = 73180800. Its totient is φ = 21573216.

The previous prime is 45904433. The next prime is 45904487. The reversal of 45904478 is 87440954.

It is a super-2 number, since 2×45904478² = 4214442200904968, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421088 + ... + 421196.

It is an arithmetic number, because the mean of its divisors is an integer number (2286900).

Almost surely, 2^45904478 is an apocalyptic number.

45904478 is a deficient number, since it is larger than the sum of its proper divisors (27276322).

45904478 is a wasteful number, since it uses less digits than its factorization.

45904478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296.

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 45904478 is about 6775.2843482765. The cubic root of 45904478 is about 358.0566008112.

The spelling of 45904478 in words is "forty-five million, nine hundred four thousand, four hundred seventy-eight".