318366740 has 12 divisors (see below), whose sum is σ = 668570196. Its totient is φ = 127346688.

The previous prime is 318366733. The next prime is 318366749. The reversal of 318366740 is 47663813.

It can be written as a sum of positive squares in 2 ways, for example, as 61277584 + 257089156 = 7828^2 + 16034^2 .

It is a super-2 number, since 2×318366740² = 202714762276455200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 318366694 and 318366703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318366749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7959149 + ... + 7959188.

It is an arithmetic number, because the mean of its divisors is an integer number (55714183).

Almost surely, 2^318366740 is an apocalyptic number.

It is an amenable number.

318366740 is an abundant number, since it is smaller than the sum of its proper divisors (350203456).

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

318366740 is a wasteful number, since it uses less digits than its factorization.

318366740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15918346 (or 15918344 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 318366740 is about 17842.8344160898. The cubic root of 318366740 is about 682.8247118710.

The spelling of 318366740 in words is "three hundred eighteen million, three hundred sixty-six thousand, seven hundred forty".