726744906 has 16 divisors (see below), whose sum is σ = 1614988800. Its totient is φ = 242248284.

The previous prime is 726744871. The next prime is 726744943. The reversal of 726744906 is 609447627.

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, 6729066 + ... + 6729173.

It is an arithmetic number, because the mean of its divisors is an integer number (100936800).

Almost surely, 2^726744906 is an apocalyptic number.

726744906 is an abundant number, since it is smaller than the sum of its proper divisors (888243894).

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

726744906 is a wasteful number, since it uses less digits than its factorization.

726744906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13458250 (or 13458244 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The square root of 726744906 is about 26958.2066540043. The cubic root of 726744906 is about 899.0710192129.

The spelling of 726744906 in words is "seven hundred twenty-six million, seven hundred forty-four thousand, nine hundred six".