3138838 has 8 divisors (see below), whose sum is σ = 4956120. Its totient is φ = 1486800.

The previous prime is 3138809. The next prime is 3138847. The reversal of 3138838 is 8388313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

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, 41263 + ... + 41338.

It is an arithmetic number, because the mean of its divisors is an integer number (619515).

Almost surely, 2^3138838 is an apocalyptic number.

3138838 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

3138838 is a deficient number, since it is larger than the sum of its proper divisors (1817282).

3138838 is a wasteful number, since it uses less digits than its factorization.

3138838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82622.

The product of its digits is 13824, while the sum is 34.

The square root of 3138838 is about 1771.6766070590. The cubic root of 3138838 is about 146.4163694657.

The spelling of 3138838 in words is "three million, one hundred thirty-eight thousand, eight hundred thirty-eight".