139232405240 has 16 divisors (see below), whose sum is σ = 313272911880. Its totient is φ = 55692962080.

The previous prime is 139232405239. The next prime is 139232405281. The reversal of 139232405240 is 42504232931.

It is a self number, because there is not a number n which added to its sum of digits gives 139232405240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1740405026 + ... + 1740405105.

Almost surely, 2^139232405240 is an apocalyptic number.

139232405240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139232405240 is an abundant number, since it is smaller than the sum of its proper divisors (174040506640).

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

139232405240 is a wasteful number, since it uses less digits than its factorization.

139232405240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3480810142 (or 3480810138 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The spelling of 139232405240 in words is "one hundred thirty-nine billion, two hundred thirty-two million, four hundred five thousand, two hundred forty".