45438870 has 32 divisors (see below), whose sum is σ = 112573440. Its totient is φ = 11725920.

The previous prime is 45438859. The next prime is 45438871. The reversal of 45438870 is 7883454.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45438871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23500 + ... + 25359.

It is an arithmetic number, because the mean of its divisors is an integer number (3517920).

Almost surely, 2^45438870 is an apocalyptic number.

45438870 is an abundant number, since it is smaller than the sum of its proper divisors (67134570).

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

45438870 is a wasteful number, since it uses less digits than its factorization.

45438870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48900.

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 45438870 is about 6740.8360015654. The cubic root of 45438870 is about 356.8418981528.

The spelling of 45438870 in words is "forty-five million, four hundred thirty-eight thousand, eight hundred seventy".