138759824 has 40 divisors (see below), whose sum is σ = 308039808. Its totient is φ = 59316480.

The previous prime is 138759823. The next prime is 138759827. The reversal of 138759824 is 428957831.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (138759821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49829 + ... + 52539.

Almost surely, 2^138759824 is an apocalyptic number.

138759824 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

138759824 is an abundant number, since it is smaller than the sum of its proper divisors (169279984).

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

138759824 is a wasteful number, since it uses less digits than its factorization.

138759824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3183 (or 3177 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 138759824 is about 11779.6359875847. The cubic root of 138759824 is about 517.7116207636.

The spelling of 138759824 in words is "one hundred thirty-eight million, seven hundred fifty-nine thousand, eight hundred twenty-four".