139786944 has 112 divisors (see below), whose sum is σ = 407554176. Its totient is φ = 42282240.

The previous prime is 139786943. The next prime is 139786951. The reversal of 139786944 is 449687931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139786943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255279 + ... + 255825.

Almost surely, 2^139786944 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 139786944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203777088).

139786944 is an abundant number, since it is smaller than the sum of its proper divisors (267767232).

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

139786944 is an equidigital number, since it uses as much as digits as its factorization.

139786944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595 (or 563 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 51.

The square root of 139786944 is about 11823.1528789913. The cubic root of 139786944 is about 518.9858735913.

The spelling of 139786944 in words is "one hundred thirty-nine million, seven hundred eighty-six thousand, nine hundred forty-four".