318340920 has 32 divisors (see below), whose sum is σ = 955023120. Its totient is φ = 84890880.

The previous prime is 318340909. The next prime is 318340927. The reversal of 318340920 is 29043813.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318340927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1326301 + ... + 1326540.

Almost surely, 2^318340920 is an apocalyptic number.

318340920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

318340920 is an abundant number, since it is smaller than the sum of its proper divisors (636682200).

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

318340920 is a wasteful number, since it uses less digits than its factorization.

318340920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2652855 (or 2652851 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 318340920 is about 17842.1108616666. The cubic root of 318340920 is about 682.8062520169.

The spelling of 318340920 in words is "three hundred eighteen million, three hundred forty thousand, nine hundred twenty".