725308408 has 16 divisors (see below), whose sum is σ = 1483585560. Its totient is φ = 329685600.

The previous prime is 725308399. The next prime is 725308411. The reversal of 725308408 is 804803527.

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, 4120983 + ... + 4121158.

Almost surely, 2^725308408 is an apocalyptic number.

It is an amenable number.

725308408 is an abundant number, since it is smaller than the sum of its proper divisors (758277152).

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

725308408 is a wasteful number, since it uses less digits than its factorization.

725308408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8242158 (or 8242154 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 725308408 is about 26931.5504195358. The cubic root of 725308408 is about 898.4782547782.

The spelling of 725308408 in words is "seven hundred twenty-five million, three hundred eight thousand, four hundred eight".