139430368 has 96 divisors (see below), whose sum is σ = 347493888. Its totient is φ = 53491200.

The previous prime is 139430359. The next prime is 139430387. The reversal of 139430368 is 863034931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174546 + ... + 175342.

It is an arithmetic number, because the mean of its divisors is an integer number (3619728).

Almost surely, 2^139430368 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 139430368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173746944).

139430368 is an abundant number, since it is smaller than the sum of its proper divisors (208063520).

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

139430368 is a wasteful number, since it uses less digits than its factorization.

139430368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896 (or 888 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 139430368 is about 11808.0636854651. The cubic root of 139430368 is about 518.5442122153.

The spelling of 139430368 in words is "one hundred thirty-nine million, four hundred thirty thousand, three hundred sixty-eight".