139624442260 has 24 divisors (see below), whose sum is σ = 303322065480. Its totient is φ = 53923922304.

The previous prime is 139624442249. The next prime is 139624442291. The reversal of 139624442260 is 62244426931.

It can be written as a sum of positive squares in 4 ways, for example, as 12708954756 + 126915487504 = 112734^2 + 356252^2 .

It is a congruent number.

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, 120365319 + ... + 120366478.

It is an arithmetic number, because the mean of its divisors is an integer number (12638419395).

Almost surely, 2^139624442260 is an apocalyptic number.

139624442260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139624442260 is an abundant number, since it is smaller than the sum of its proper divisors (163697623220).

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

139624442260 is a wasteful number, since it uses less digits than its factorization.

139624442260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240731835 (or 240731833 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 43.

The spelling of 139624442260 in words is "one hundred thirty-nine billion, six hundred twenty-four million, four hundred forty-two thousand, two hundred sixty".