718772736 has 160 divisors (see below), whose sum is σ = 2199859200. Its totient is φ = 206254080.

The previous prime is 718772711. The next prime is 718772741. The reversal of 718772736 is 637277817.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

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 15 ways as a sum of consecutive naturals, for example, 319905 + ... + 322143.

It is an arithmetic number, because the mean of its divisors is an integer number (13749120).

Almost surely, 2^718772736 is an apocalyptic number.

718772736 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 718772736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1099929600).

718772736 is an abundant number, since it is smaller than the sum of its proper divisors (1481086464).

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

718772736 is a wasteful number, since it uses less digits than its factorization.

718772736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290 (or 2274 counting only the distinct ones).

The product of its digits is 691488, while the sum is 48.

The square root of 718772736 is about 26809.9372621422. The cubic root of 718772736 is about 895.7714127763.

The spelling of 718772736 in words is "seven hundred eighteen million, seven hundred seventy-two thousand, seven hundred thirty-six".