138585376 has 24 divisors (see below), whose sum is σ = 281643264. Its totient is φ = 67056960.

The previous prime is 138585361. The next prime is 138585379. The reversal of 138585376 is 673585831.

It is a super-2 number, since 2×138585376² = 38411812882122752, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (138585379) 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, 68860 + ... + 70843.

It is an arithmetic number, because the mean of its divisors is an integer number (11735136).

Almost surely, 2^138585376 is an apocalyptic number.

138585376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

138585376 is an abundant number, since it is smaller than the sum of its proper divisors (143057888).

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

138585376 is a wasteful number, since it uses less digits than its factorization.

138585376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139744 (or 139736 counting only the distinct ones).

The product of its digits is 604800, while the sum is 46.

The square root of 138585376 is about 11772.2290157812. The cubic root of 138585376 is about 517.4945751569.

The spelling of 138585376 in words is "one hundred thirty-eight million, five hundred eighty-five thousand, three hundred seventy-six".