139844960 has 48 divisors (see below), whose sum is σ = 341787600. Its totient is φ = 54007296.

The previous prime is 139844953. The next prime is 139844963. The reversal of 139844960 is 69448931.

It is a super-2 number, since 2×139844960² = 39113225674803200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139844963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10430 + ... + 19709.

It is an arithmetic number, because the mean of its divisors is an integer number (7120575).

Almost surely, 2^139844960 is an apocalyptic number.

139844960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139844960 is an abundant number, since it is smaller than the sum of its proper divisors (201942640).

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

139844960 is a wasteful number, since it uses less digits than its factorization.

139844960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30183 (or 30175 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 139844960 is about 11825.6061155444. The cubic root of 139844960 is about 519.0576621744.

The spelling of 139844960 in words is "one hundred thirty-nine million, eight hundred forty-four thousand, nine hundred sixty".