45128072 has 16 divisors (see below), whose sum is σ = 92307600. Its totient is φ = 20512720.

The previous prime is 45128023. The next prime is 45128087. The reversal of 45128072 is 27082154.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256322 + ... + 256497.

It is an arithmetic number, because the mean of its divisors is an integer number (5769225).

Almost surely, 2^45128072 is an apocalyptic number.

It is an amenable number.

45128072 is an abundant number, since it is smaller than the sum of its proper divisors (47179528).

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

45128072 is a wasteful number, since it uses less digits than its factorization.

45128072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512836 (or 512832 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 45128072 is about 6717.7430733841. The cubic root of 45128072 is about 356.0264467160.

The spelling of 45128072 in words is "forty-five million, one hundred twenty-eight thousand, seventy-two".