725028928 has 42 divisors (see below), whose sum is σ = 1557937194. Its totient is φ = 334623744.

The previous prime is 725028917. The next prime is 725028929. The reversal of 725028928 is 829820527.

It can be written as a sum of positive squares in 3 ways, for example, as 68029504 + 656999424 = 8248^2 + 25632^2 .

It is not an unprimeable number, because it can be changed into a prime (725028929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22701 + ... + 44332.

Almost surely, 2^725028928 is an apocalyptic number.

It is an amenable number.

725028928 is an abundant number, since it is smaller than the sum of its proper divisors (832908266).

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

725028928 is a wasteful number, since it uses less digits than its factorization.

725028928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67071 (or 67048 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 725028928 is about 26926.3612097884. The cubic root of 725028928 is about 898.3628376860.

The spelling of 725028928 in words is "seven hundred twenty-five million, twenty-eight thousand, nine hundred twenty-eight".