139640304024 has 128 divisors (see below), whose sum is σ = 418637419200. Its totient is φ = 42872647680.

The previous prime is 139640304007. The next prime is 139640304029. The reversal of 139640304024 is 420403046931.

It is a happy number.

139640304024 is a `hidden beast` number, since 1 + 3 + 9 + 640 + 3 + 0 + 4 + 0 + 2 + 4 = 666.

139640304024 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 139640304024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139640304029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1240552 + ... + 1348424.

Almost surely, 2^139640304024 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 139640304024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209318709600).

139640304024 is an abundant number, since it is smaller than the sum of its proper divisors (278997115176).

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

139640304024 is a wasteful number, since it uses less digits than its factorization.

139640304024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108362 (or 108352 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 139640304024 in words is "one hundred thirty-nine billion, six hundred forty million, three hundred four thousand, twenty-four".