138588760 has 32 divisors (see below), whose sum is σ = 330168960. Its totient is φ = 52174336.

The previous prime is 138588757. The next prime is 138588803. The reversal of 138588760 is 67885831.

It is a self number, because there is not a number n which added to its sum of digits gives 138588760.

It is a congruent number.

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, 101224 + ... + 102583.

It is an arithmetic number, because the mean of its divisors is an integer number (10317780).

Almost surely, 2^138588760 is an apocalyptic number.

138588760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138588760 is an abundant number, since it is smaller than the sum of its proper divisors (191580200).

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

138588760 is a wasteful number, since it uses less digits than its factorization.

138588760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203835 (or 203831 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 138588760 is about 11772.3727429945. The cubic root of 138588760 is about 517.4987872112.

The spelling of 138588760 in words is "one hundred thirty-eight million, five hundred eighty-eight thousand, seven hundred sixty".