45904890 has 32 divisors (see below), whose sum is σ = 112254336. Its totient is φ = 12009920.

The previous prime is 45904867. The next prime is 45904909. The reversal of 45904890 is 9840954.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12846 + ... + 16025.

It is an arithmetic number, because the mean of its divisors is an integer number (3507948).

Almost surely, 2^45904890 is an apocalyptic number.

45904890 is an abundant number, since it is smaller than the sum of its proper divisors (66349446).

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

45904890 is a wasteful number, since it uses less digits than its factorization.

45904890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28934.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 45904890 is about 6775.3147528362. The cubic root of 45904890 is about 358.0576720130.

The spelling of 45904890 in words is "forty-five million, nine hundred four thousand, eight hundred ninety".