3138938 has 16 divisors (see below), whose sum is σ = 5222880. Its totient is φ = 1402800.

The previous prime is 3138929. The next prime is 3138943. The reversal of 3138938 is 8398313.

It is a junction number, because it is equal to n+sod(n) for n = 3138898 and 3138907.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173 + ... + 2511.

It is an arithmetic number, because the mean of its divisors is an integer number (326430).

Almost surely, 2^3138938 is an apocalyptic number.

3138938 is a deficient number, since it is larger than the sum of its proper divisors (2083942).

3138938 is a wasteful number, since it uses less digits than its factorization.

3138938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2413.

The product of its digits is 15552, while the sum is 35.

The square root of 3138938 is about 1771.7048286890. The cubic root of 3138938 is about 146.4179243385.

The spelling of 3138938 in words is "three million, one hundred thirty-eight thousand, nine hundred thirty-eight".