716431640 has 32 divisors (see below), whose sum is σ = 1612802880. Its totient is φ = 286424832.

The previous prime is 716431627. The next prime is 716431691. The reversal of 716431640 is 46134617.

It is a junction number, because it is equal to n+sod(n) for n = 716431597 and 716431606.

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, 107444 + ... + 113916.

It is an arithmetic number, because the mean of its divisors is an integer number (50400090).

Almost surely, 2^716431640 is an apocalyptic number.

It is an amenable number.

716431640 is an abundant number, since it is smaller than the sum of its proper divisors (896371240).

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

716431640 is a wasteful number, since it uses less digits than its factorization.

716431640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9251 (or 9247 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 716431640 is about 26766.2406773906. The cubic root of 716431640 is about 894.7978237293.

The spelling of 716431640 in words is "seven hundred sixteen million, four hundred thirty-one thousand, six hundred forty".