718536140 has 48 divisors (see below), whose sum is σ = 1750248192. Its totient is φ = 242675136.

The previous prime is 718536131. The next prime is 718536157. The reversal of 718536140 is 41635817.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 718536140.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28922 + ... + 47681.

It is an arithmetic number, because the mean of its divisors is an integer number (36463504).

Almost surely, 2^718536140 is an apocalyptic number.

718536140 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

718536140 is an abundant number, since it is smaller than the sum of its proper divisors (1031712052).

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

718536140 is a wasteful number, since it uses less digits than its factorization.

718536140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76686 (or 76684 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 718536140 is about 26805.5244306094. The cubic root of 718536140 is about 895.6731159708.

The spelling of 718536140 in words is "seven hundred eighteen million, five hundred thirty-six thousand, one hundred forty".