720464402 has 32 divisors (see below), whose sum is σ = 1253145600. Its totient is φ = 304274448.

The previous prime is 720464359. The next prime is 720464449. The reversal of 720464402 is 204464027.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 858299 + ... + 859137.

It is an arithmetic number, because the mean of its divisors is an integer number (39160800).

Almost surely, 2^720464402 is an apocalyptic number.

720464402 is a deficient number, since it is larger than the sum of its proper divisors (532681198).

720464402 is a wasteful number, since it uses less digits than its factorization.

720464402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670.

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 720464402 is about 26841.4679553857. The cubic root of 720464402 is about 896.4736091293.

The spelling of 720464402 in words is "seven hundred twenty million, four hundred sixty-four thousand, four hundred two".