138834060 has 48 divisors (see below), whose sum is σ = 392194656. Its totient is φ = 36692992.

The previous prime is 138834029. The next prime is 138834061. The reversal of 138834060 is 60438831.

It is not an unprimeable number, because it can be changed into a prime (138834061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3459 + ... + 17018.

It is an arithmetic number, because the mean of its divisors is an integer number (8170722).

Almost surely, 2^138834060 is an apocalyptic number.

138834060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138834060 is an abundant number, since it is smaller than the sum of its proper divisors (253360596).

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

138834060 is a wasteful number, since it uses less digits than its factorization.

138834060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20602 (or 20600 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 138834060 is about 11782.7865974056. The cubic root of 138834060 is about 517.8039289140.

The spelling of 138834060 in words is "one hundred thirty-eight million, eight hundred thirty-four thousand, sixty".