139642704 has 200 divisors, whose sum is σ = 437516640. Its totient is φ = 42861312.

The previous prime is 139642697. The next prime is 139642717. The reversal of 139642704 is 407246931.

139642704 is a `hidden beast` number, since 1 + 3 + 9 + 642 + 7 + 0 + 4 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1305019 + ... + 1305125.

Almost surely, 2^139642704 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 139642704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218758320).

139642704 is an abundant number, since it is smaller than the sum of its proper divisors (297873936).

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

139642704 is a wasteful number, since it uses less digits than its factorization.

139642704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 139642704 is about 11817.0514088752. The cubic root of 139642704 is about 518.8073059255.

It can be divided in two parts, 1396 and 42704, that added together give a square (44100 = 210²).

The spelling of 139642704 in words is "one hundred thirty-nine million, six hundred forty-two thousand, seven hundred four".