718734312 has 48 divisors (see below), whose sum is σ = 1951092000. Its totient is φ = 239021856.

The previous prime is 718734311. The next prime is 718734343. The reversal of 718734312 is 213437817.

718734312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×718734312² = 1033158022492226688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (718734311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20239 + ... + 42977.

It is an arithmetic number, because the mean of its divisors is an integer number (40647750).

Almost surely, 2^718734312 is an apocalyptic number.

718734312 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

718734312 is an abundant number, since it is smaller than the sum of its proper divisors (1232357688).

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

718734312 is a wasteful number, since it uses less digits than its factorization.

718734312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23190 (or 23183 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 718734312 is about 26809.2206526038. The cubic root of 718734312 is about 895.7554505060.

The spelling of 718734312 in words is "seven hundred eighteen million, seven hundred thirty-four thousand, three hundred twelve".