45528728 has 16 divisors (see below), whose sum is σ = 97561680. Its totient is φ = 19512288.

The previous prime is 45528697. The next prime is 45528733. The reversal of 45528728 is 82782554.

It is a congruent number.

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, 406451 + ... + 406562.

It is an arithmetic number, because the mean of its divisors is an integer number (6097605).

Almost surely, 2^45528728 is an apocalyptic number.

It is an amenable number.

45528728 is an abundant number, since it is smaller than the sum of its proper divisors (52032952).

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

45528728 is a wasteful number, since it uses less digits than its factorization.

45528728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 813026 (or 813022 counting only the distinct ones).

The product of its digits is 179200, while the sum is 41.

The square root of 45528728 is about 6747.4979066318. The cubic root of 45528728 is about 357.0769684470.

The spelling of 45528728 in words is "forty-five million, five hundred twenty-eight thousand, seven hundred twenty-eight".