726936720 has 40 divisors (see below), whose sum is σ = 2253504576. Its totient is φ = 193849728.

The previous prime is 726936703. The next prime is 726936731. The reversal of 726936720 is 27639627.

It is a tau number, because it is divible by the number of its divisors (40).

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, 1514212 + ... + 1514691.

Almost surely, 2^726936720 is an apocalyptic number.

It is an amenable number.

726936720 is an abundant number, since it is smaller than the sum of its proper divisors (1526567856).

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

726936720 is a wasteful number, since it uses less digits than its factorization.

726936720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3028919 (or 3028913 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 42.

The square root of 726936720 is about 26961.7640372436. The cubic root of 726936720 is about 899.1501112653.

The spelling of 726936720 in words is "seven hundred twenty-six million, nine hundred thirty-six thousand, seven hundred twenty".