138834696 has 128 divisors (see below), whose sum is σ = 466099200. Its totient is φ = 33281280.

The previous prime is 138834677. The next prime is 138834737. The reversal of 138834696 is 696438831.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21135 + ... + 26913.

It is an arithmetic number, because the mean of its divisors is an integer number (3641400).

Almost surely, 2^138834696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 138834696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233049600).

138834696 is an abundant number, since it is smaller than the sum of its proper divisors (327264504).

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

138834696 is a wasteful number, since it uses less digits than its factorization.

138834696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5819 (or 5815 counting only the distinct ones).

The product of its digits is 746496, while the sum is 48.

The square root of 138834696 is about 11782.8135858970. The cubic root of 138834696 is about 517.8047196009.

The spelling of 138834696 in words is "one hundred thirty-eight million, eight hundred thirty-four thousand, six hundred ninety-six".