3138578838 has 48 divisors (see below), whose sum is σ = 6881144400. Its totient is φ = 1033790400.

The previous prime is 3138578819. The next prime is 3138578881. The reversal of 3138578838 is 8388758313.

3138578838 is a `hidden beast` number, since 3 + 1 + 38 + 578 + 8 + 38 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1123948 + ... + 1126736.

It is an arithmetic number, because the mean of its divisors is an integer number (143357175).

Almost surely, 2^3138578838 is an apocalyptic number.

3138578838 is an abundant number, since it is smaller than the sum of its proper divisors (3742565562).

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

3138578838 is a wasteful number, since it uses less digits than its factorization.

3138578838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3517 (or 3514 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 3138578838 is about 56023.0206076038. The cubic root of 3138578838 is about 1464.1233967251.

The spelling of 3138578838 in words is "three billion, one hundred thirty-eight million, five hundred seventy-eight thousand, eight hundred thirty-eight".