725340624 has 20 divisors (see below), whose sum is σ = 1873796736. Its totient is φ = 241780192.

The previous prime is 725340607. The next prime is 725340647. The reversal of 725340624 is 426043527.

It is a super-2 number, since 2×725340624² = 1052238041649418752, which contains 22 as substring.

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, 7555584 + ... + 7555679.

Almost surely, 2^725340624 is an apocalyptic number.

It is an amenable number.

725340624 is an abundant number, since it is smaller than the sum of its proper divisors (1148456112).

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

725340624 is a wasteful number, since it uses less digits than its factorization.

725340624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15111274 (or 15111268 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 33.

The square root of 725340624 is about 26932.1485217945. The cubic root of 725340624 is about 898.4915571410.

The spelling of 725340624 in words is "seven hundred twenty-five million, three hundred forty thousand, six hundred twenty-four".