138365376 has 28 divisors (see below), whose sum is σ = 366092232. Its totient is φ = 46121728.

The previous prime is 138365371. The next prime is 138365393. The reversal of 138365376 is 673563831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138365371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360135 + ... + 360518.

Almost surely, 2^138365376 is an apocalyptic number.

138365376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

138365376 is an abundant number, since it is smaller than the sum of its proper divisors (227726856).

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

138365376 is an equidigital number, since it uses as much as digits as its factorization.

138365376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720668 (or 720658 counting only the distinct ones).

The product of its digits is 272160, while the sum is 42.

The square root of 138365376 is about 11762.8812796865. The cubic root of 138365376 is about 517.2205945806.

The spelling of 138365376 in words is "one hundred thirty-eight million, three hundred sixty-five thousand, three hundred seventy-six".