725339228 has 24 divisors (see below), whose sum is σ = 1284323712. Its totient is φ = 358401024.

The previous prime is 725339207. The next prime is 725339233. The reversal of 725339228 is 822933527.

It is a super-2 number, since 2×725339228² = 1052233991351271968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462101 + ... + 463667.

It is an arithmetic number, because the mean of its divisors is an integer number (53513488).

Almost surely, 2^725339228 is an apocalyptic number.

It is an amenable number.

725339228 is a deficient number, since it is larger than the sum of its proper divisors (558984484).

725339228 is a wasteful number, since it uses less digits than its factorization.

725339228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2861 (or 2859 counting only the distinct ones).

The product of its digits is 181440, while the sum is 41.

The square root of 725339228 is about 26932.1226048004. The cubic root of 725339228 is about 898.4909807245.

The spelling of 725339228 in words is "seven hundred twenty-five million, three hundred thirty-nine thousand, two hundred twenty-eight".