45439922 has 16 divisors (see below), whose sum is σ = 76367232. Its totient is φ = 20095920.

The previous prime is 45439909. The next prime is 45439939. The reversal of 45439922 is 22993454.

It is a happy number.

It is a super-2 number, since 2×45439922² = 4129573022732168, which contains 22 as substring.

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, 27098 + ... + 28725.

It is an arithmetic number, because the mean of its divisors is an integer number (4772952).

Almost surely, 2^45439922 is an apocalyptic number.

45439922 is a deficient number, since it is larger than the sum of its proper divisors (30927310).

45439922 is a wasteful number, since it uses less digits than its factorization.

45439922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55873.

The product of its digits is 77760, while the sum is 38.

The square root of 45439922 is about 6740.9140329780. The cubic root of 45439922 is about 356.8446519975.

The spelling of 45439922 in words is "forty-five million, four hundred thirty-nine thousand, nine hundred twenty-two".