138076704 has 48 divisors (see below), whose sum is σ = 402726240. Its totient is φ = 46025280.

The previous prime is 138076699. The next prime is 138076721. The reversal of 138076704 is 407670831.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 79042 + ... + 80769.

It is an arithmetic number, because the mean of its divisors is an integer number (8390130).

Almost surely, 2^138076704 is an apocalyptic number.

It is an amenable number.

138076704 is an abundant number, since it is smaller than the sum of its proper divisors (264649536).

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

138076704 is a wasteful number, since it uses less digits than its factorization.

138076704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159830 (or 159816 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 138076704 is about 11750.6044099867. The cubic root of 138076704 is about 516.8606513116.

The spelling of 138076704 in words is "one hundred thirty-eight million, seventy-six thousand, seven hundred four".