318145872 has 80 divisors (see below), whose sum is σ = 901817280. Its totient is φ = 95846400.

The previous prime is 318145831. The next prime is 318145879. The reversal of 318145872 is 278541813.

It is a self number, because there is not a number n which added to its sum of digits gives 318145872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318145879) by changing a digit.

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, 93904 + ... + 97232.

It is an arithmetic number, because the mean of its divisors is an integer number (11272716).

Almost surely, 2^318145872 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 318145872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (450908640).

318145872 is an abundant number, since it is smaller than the sum of its proper divisors (583671408).

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

318145872 is a wasteful number, since it uses less digits than its factorization.

318145872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3532 (or 3526 counting only the distinct ones).

The product of its digits is 53760, while the sum is 39.

The square root of 318145872 is about 17836.6440789740. The cubic root of 318145872 is about 682.6667713589. Note that the first 3 decimals are identical.

The spelling of 318145872 in words is "three hundred eighteen million, one hundred forty-five thousand, eight hundred seventy-two".