725235740 has 24 divisors (see below), whose sum is σ = 1541347920. Its totient is φ = 286598528.

The previous prime is 725235727. The next prime is 725235761. The reversal of 725235740 is 47532527.

It is a self number, because there is not a number n which added to its sum of digits gives 725235740.

It is a congruent number.

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, 216785 + ... + 220104.

It is an arithmetic number, because the mean of its divisors is an integer number (64222830).

Almost surely, 2^725235740 is an apocalyptic number.

It is an amenable number.

725235740 is an abundant number, since it is smaller than the sum of its proper divisors (816112180).

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

725235740 is a wasteful number, since it uses less digits than its factorization.

725235740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436981 (or 436979 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 35.

The square root of 725235740 is about 26930.2012617804. The cubic root of 725235740 is about 898.4482478654.

The spelling of 725235740 in words is "seven hundred twenty-five million, two hundred thirty-five thousand, seven hundred forty".