3138864 has 20 divisors (see below), whose sum is σ = 8108856. Its totient is φ = 1046272.

The previous prime is 3138853. The next prime is 3138869. The reversal of 3138864 is 4688313.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (3138869) 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, 32649 + ... + 32744.

Almost surely, 2^3138864 is an apocalyptic number.

It is an amenable number.

3138864 is an abundant number, since it is smaller than the sum of its proper divisors (4969992).

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

3138864 is a wasteful number, since it uses less digits than its factorization.

3138864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65404 (or 65398 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 3138864 is about 1771.6839447260. The cubic root of 3138864 is about 146.4167737358.

The spelling of 3138864 in words is "three million, one hundred thirty-eight thousand, eight hundred sixty-four".