138372626 has 16 divisors (see below), whose sum is σ = 239561280. Its totient is φ = 58714800.

The previous prime is 138372613. The next prime is 138372671. The reversal of 138372626 is 626273831.

It is a super-2 number, since 2×138372626² = 38293967252271752, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 138372626.

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 7 ways as a sum of consecutive naturals, for example, 47516 + ... + 50343.

It is an arithmetic number, because the mean of its divisors is an integer number (14972580).

Almost surely, 2^138372626 is an apocalyptic number.

138372626 is a deficient number, since it is larger than the sum of its proper divisors (101188654).

138372626 is a wasteful number, since it uses less digits than its factorization.

138372626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97969.

The product of its digits is 72576, while the sum is 38.

The square root of 138372626 is about 11763.1894484447. The cubic root of 138372626 is about 517.2296281118.

The spelling of 138372626 in words is "one hundred thirty-eight million, three hundred seventy-two thousand, six hundred twenty-six".