138943376 has 40 divisors (see below), whose sum is σ = 316271424. Its totient is φ = 58296960.

The previous prime is 138943361. The next prime is 138943403. The reversal of 138943376 is 673349831.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28076 + ... + 32651.

Almost surely, 2^138943376 is an apocalyptic number.

138943376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

138943376 is an abundant number, since it is smaller than the sum of its proper divisors (177328048).

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

138943376 is a wasteful number, since it uses less digits than its factorization.

138943376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60759 (or 60753 counting only the distinct ones).

The product of its digits is 326592, while the sum is 44.

The square root of 138943376 is about 11787.4244854421. The cubic root of 138943376 is about 517.9397971208.

The spelling of 138943376 in words is "one hundred thirty-eight million, nine hundred forty-three thousand, three hundred seventy-six".