138788796 has 12 divisors (see below), whose sum is σ = 323840552. Its totient is φ = 46262928.

The previous prime is 138788777. The next prime is 138788807. The reversal of 138788796 is 697887831.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 5782855 + ... + 5782878.

Almost surely, 2^138788796 is an apocalyptic number.

It is an amenable number.

138788796 is an abundant number, since it is smaller than the sum of its proper divisors (185051756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138788796 is a wasteful number, since it uses less digits than its factorization.

138788796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11565740 (or 11565738 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 57.

The square root of 138788796 is about 11780.8656727763. The cubic root of 138788796 is about 517.7476496776.

The spelling of 138788796 in words is "one hundred thirty-eight million, seven hundred eighty-eight thousand, seven hundred ninety-six".