725684460 has 24 divisors (see below), whose sum is σ = 2031916656. Its totient is φ = 193515840.

The previous prime is 725684419. The next prime is 725684473. The reversal of 725684460 is 64486527.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6047311 + ... + 6047430.

It is an arithmetic number, because the mean of its divisors is an integer number (84663194).

Almost surely, 2^725684460 is an apocalyptic number.

It is an amenable number.

725684460 is an abundant number, since it is smaller than the sum of its proper divisors (1306232196).

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

725684460 is a wasteful number, since it uses less digits than its factorization.

725684460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12094753 (or 12094751 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The square root of 725684460 is about 26938.5311403573. The cubic root of 725684460 is about 898.6335065143.

It can be divided in two parts, 72568 and 4460, that added together give a triangular number (77028 = T₃₉₂).

The spelling of 725684460 in words is "seven hundred twenty-five million, six hundred eighty-four thousand, four hundred sixty".