45904220 has 24 divisors (see below), whose sum is σ = 98642544. Its totient is φ = 17934336.

The previous prime is 45904219. The next prime is 45904231. The reversal of 45904220 is 2240954.

It is a self number, because there is not a number n which added to its sum of digits gives 45904220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25829 + ... + 27548.

It is an arithmetic number, because the mean of its divisors is an integer number (4110106).

Almost surely, 2^45904220 is an apocalyptic number.

It is an amenable number.

45904220 is an abundant number, since it is smaller than the sum of its proper divisors (52738324).

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

45904220 is a wasteful number, since it uses less digits than its factorization.

45904220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53429 (or 53427 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 45904220 is about 6775.2653084584. The cubic root of 45904220 is about 358.0559300068.

The spelling of 45904220 in words is "forty-five million, nine hundred four thousand, two hundred twenty".