318139380 has 96 divisors (see below), whose sum is σ = 1065926400. Its totient is φ = 78309504.

The previous prime is 318139373. The next prime is 318139417. The reversal of 318139380 is 83931813.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15640 + ... + 29679.

It is an arithmetic number, because the mean of its divisors is an integer number (11103400).

Almost surely, 2^318139380 is an apocalyptic number.

318139380 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

318139380 is an abundant number, since it is smaller than the sum of its proper divisors (747787020).

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

318139380 is a wasteful number, since it uses less digits than its factorization.

318139380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45350 (or 45342 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 318139380 is about 17836.4620931394. The cubic root of 318139380 is about 682.6621278885.

The spelling of 318139380 in words is "three hundred eighteen million, one hundred thirty-nine thousand, three hundred eighty".