138392396 has 12 divisors (see below), whose sum is σ = 242719848. Its totient is φ = 69043872.

The previous prime is 138392389. The next prime is 138392411. The reversal of 138392396 is 693293831.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36026 + ... + 39681.

It is an arithmetic number, because the mean of its divisors is an integer number (20226654).

Almost surely, 2^138392396 is an apocalyptic number.

It is an amenable number.

138392396 is a deficient number, since it is larger than the sum of its proper divisors (104327452).

138392396 is a wasteful number, since it uses less digits than its factorization.

138392396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76168 (or 76166 counting only the distinct ones).

The product of its digits is 209952, while the sum is 44.

The square root of 138392396 is about 11764.0297517475. The cubic root of 138392396 is about 517.2542600135.

The spelling of 138392396 in words is "one hundred thirty-eight million, three hundred ninety-two thousand, three hundred ninety-six".