316838388 has 12 divisors (see below), whose sum is σ = 739289600. Its totient is φ = 105612792.

The previous prime is 316838387. The next prime is 316838411. The reversal of 316838388 is 883838613.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×316838388² = 200773128220877088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316838381) 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, 13201588 + ... + 13201611.

Almost surely, 2^316838388 is an apocalyptic number.

It is an amenable number.

316838388 is an abundant number, since it is smaller than the sum of its proper divisors (422451212).

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

316838388 is a wasteful number, since it uses less digits than its factorization.

316838388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26403206 (or 26403204 counting only the distinct ones).

The product of its digits is 663552, while the sum is 48.

The square root of 316838388 is about 17799.9547190435. The cubic root of 316838388 is about 681.7303021702.

The spelling of 316838388 in words is "three hundred sixteen million, eight hundred thirty-eight thousand, three hundred eighty-eight".