139732944 has 80 divisors (see below), whose sum is σ = 395224704. Its totient is φ = 42278400.

The previous prime is 139732939. The next prime is 139732951. The reversal of 139732944 is 449237931.

It is a junction number, because it is equal to n+sod(n) for n = 139732896 and 139732905.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36229 + ... + 39899.

Almost surely, 2^139732944 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 139732944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197612352).

139732944 is an abundant number, since it is smaller than the sum of its proper divisors (255491760).

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

139732944 is a wasteful number, since it uses less digits than its factorization.

139732944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3756 (or 3750 counting only the distinct ones).

The product of its digits is 163296, while the sum is 42.

The square root of 139732944 is about 11820.8690035885. The cubic root of 139732944 is about 518.9190365275.

The spelling of 139732944 in words is "one hundred thirty-nine million, seven hundred thirty-two thousand, nine hundred forty-four".