716416640 has 64 divisors (see below), whose sum is σ = 1723196160. Its totient is φ = 284808192.

The previous prime is 716416637. The next prime is 716416661. The reversal of 716416640 is 46614617.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 716416640.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103529 + ... + 110231.

It is an arithmetic number, because the mean of its divisors is an integer number (26924940).

Almost surely, 2^716416640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 716416640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (861598080).

716416640 is an abundant number, since it is smaller than the sum of its proper divisors (1006779520).

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

716416640 is a wasteful number, since it uses less digits than its factorization.

716416640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6889 (or 6877 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 716416640 is about 26765.9604722117. The cubic root of 716416640 is about 894.7915788622.

The spelling of 716416640 in words is "seven hundred sixteen million, four hundred sixteen thousand, six hundred forty".