138380924 has 36 divisors (see below), whose sum is σ = 275389800. Its totient is φ = 60725280.

The previous prime is 138380911. The next prime is 138380941. The reversal of 138380924 is 429083831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9107 + ... + 18965.

Almost surely, 2^138380924 is an apocalyptic number.

It is an amenable number.

138380924 is a deficient number, since it is larger than the sum of its proper divisors (137008876).

138380924 is a wasteful number, since it uses less digits than its factorization.

138380924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9914 (or 9901 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 138380924 is about 11763.5421536202. The cubic root of 138380924 is about 517.2399670682.

The spelling of 138380924 in words is "one hundred thirty-eight million, three hundred eighty thousand, nine hundred twenty-four".