726732672 has 64 divisors (see below), whose sum is σ = 2032003200. Its totient is φ = 229492224.

The previous prime is 726732647. The next prime is 726732683. The reversal of 726732672 is 276237627.

It is a tau number, because it is divible by the number of its divisors (64).

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, 42508 + ... + 57099.

It is an arithmetic number, because the mean of its divisors is an integer number (31750050).

Almost surely, 2^726732672 is an apocalyptic number.

It is an amenable number.

726732672 is an abundant number, since it is smaller than the sum of its proper divisors (1305270528).

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

726732672 is a wasteful number, since it uses less digits than its factorization.

726732672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99643 (or 99631 counting only the distinct ones).

The product of its digits is 296352, while the sum is 42.

The square root of 726732672 is about 26957.9797462644. The cubic root of 726732672 is about 899.0659742072.

The spelling of 726732672 in words is "seven hundred twenty-six million, seven hundred thirty-two thousand, six hundred seventy-two".