726868920 has 32 divisors (see below), whose sum is σ = 2180607120. Its totient is φ = 193831680.

The previous prime is 726868913. The next prime is 726868937. The reversal of 726868920 is 29868627.

It is a happy number.

726868920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 726868920.

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, 3028501 + ... + 3028740.

Almost surely, 2^726868920 is an apocalyptic number.

It is an amenable number.

726868920 is an abundant number, since it is smaller than the sum of its proper divisors (1453738200).

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

726868920 is a wasteful number, since it uses less digits than its factorization.

726868920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6057255 (or 6057251 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 726868920 is about 26960.5066717968. The cubic root of 726868920 is about 899.1221563914.

The spelling of 726868920 in words is "seven hundred twenty-six million, eight hundred sixty-eight thousand, nine hundred twenty".