1318708272 has 80 divisors (see below), whose sum is σ = 3907464192. Its totient is φ = 375406080.

The previous prime is 1318708267. The next prime is 1318708273. The reversal of 1318708272 is 2728078131.

It is a self number, because there is not a number n which added to its sum of digits gives 1318708272.

It is not an unprimeable number, because it can be changed into a prime (1318708273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87433 + ... + 101399.

Almost surely, 2^1318708272 is an apocalyptic number.

1318708272 is a gapful number since it is divisible by the number (12) 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 1318708272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1953732096).

1318708272 is an abundant number, since it is smaller than the sum of its proper divisors (2588755920).

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

1318708272 is a wasteful number, since it uses less digits than its factorization.

1318708272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14266 (or 14260 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 39.

The square root of 1318708272 is about 36314.0230764921. The cubic root of 1318708272 is about 1096.6033715724.

The spelling of 1318708272 in words is "one billion, three hundred eighteen million, seven hundred eight thousand, two hundred seventy-two".