45990390 has 32 divisors (see below), whose sum is σ = 110728800. Its totient is φ = 12225024.

The previous prime is 45990367. The next prime is 45990421. The reversal of 45990390 is 9309954.

It is a happy number.

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, 7836 + ... + 12384.

It is an arithmetic number, because the mean of its divisors is an integer number (3460275).

Almost surely, 2^45990390 is an apocalyptic number.

45990390 is an abundant number, since it is smaller than the sum of its proper divisors (64738410).

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

45990390 is a wasteful number, since it uses less digits than its factorization.

45990390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4896.

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 45990390 is about 6781.6214875205. The cubic root of 45990390 is about 358.2798338493.

The spelling of 45990390 in words is "forty-five million, nine hundred ninety thousand, three hundred ninety".