3138456 has 16 divisors (see below), whose sum is σ = 7846200. Its totient is φ = 1046144.

The previous prime is 3138449. The next prime is 3138469. The reversal of 3138456 is 6548313.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65361 + ... + 65408.

Almost surely, 2^3138456 is an apocalyptic number.

It is an amenable number.

3138456 is an abundant number, since it is smaller than the sum of its proper divisors (4707744).

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

3138456 is a wasteful number, since it uses less digits than its factorization.

3138456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130778 (or 130774 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 3138456 is about 1771.5687962933. The cubic root of 3138456 is about 146.4104295475.

The spelling of 3138456 in words is "three million, one hundred thirty-eight thousand, four hundred fifty-six".