138796238 has 32 divisors (see below), whose sum is σ = 246816768. Its totient is φ = 57283200.

The previous prime is 138796219. The next prime is 138796247. The reversal of 138796238 is 832697831.

138796238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 138796192 and 138796201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103931 + ... + 105257.

It is an arithmetic number, because the mean of its divisors is an integer number (7713024).

Almost surely, 2^138796238 is an apocalyptic number.

138796238 is a deficient number, since it is larger than the sum of its proper divisors (108020530).

138796238 is a wasteful number, since it uses less digits than its factorization.

138796238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608.

The product of its digits is 435456, while the sum is 47.

The square root of 138796238 is about 11781.1815196949. The cubic root of 138796238 is about 517.7569035685.

The spelling of 138796238 in words is "one hundred thirty-eight million, seven hundred ninety-six thousand, two hundred thirty-eight".