138834084 has 24 divisors (see below), whose sum is σ = 324136960. Its totient is φ = 46250784.

The previous prime is 138834067. The next prime is 138834097. The reversal of 138834084 is 480438831.

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, 36957 + ... + 40539.

Almost surely, 2^138834084 is an apocalyptic number.

It is an amenable number.

138834084 is an abundant number, since it is smaller than the sum of its proper divisors (185302876).

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

138834084 is a wasteful number, since it uses less digits than its factorization.

138834084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6819 (or 6817 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 138834084 is about 11782.7876158403. The cubic root of 138834084 is about 517.8039587513.

The spelling of 138834084 in words is "one hundred thirty-eight million, eight hundred thirty-four thousand, eighty-four".