725972394 has 32 divisors (see below), whose sum is σ = 1672045056. Its totient is φ = 205835760.

The previous prime is 725972393. The next prime is 725972411. The reversal of 725972394 is 493279527.

It is not an unprimeable number, because it can be changed into a prime (725972393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60472 + ... + 71475.

It is an arithmetic number, because the mean of its divisors is an integer number (52251408).

Almost surely, 2^725972394 is an apocalyptic number.

725972394 is an abundant number, since it is smaller than the sum of its proper divisors (946072662).

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

725972394 is a wasteful number, since it uses less digits than its factorization.

725972394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132090.

The product of its digits is 952560, while the sum is 48.

The square root of 725972394 is about 26943.8748883675. The cubic root of 725972394 is about 898.7523427947.

The spelling of 725972394 in words is "seven hundred twenty-five million, nine hundred seventy-two thousand, three hundred ninety-four".