139057344 has 56 divisors (see below), whose sum is σ = 408807920. Its totient is φ = 46351872.

The previous prime is 139057339. The next prime is 139057367. The reversal of 139057344 is 443750931.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 139057299 and 139057308.

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, 38509 + ... + 41964.

Almost surely, 2^139057344 is an apocalyptic number.

It is an amenable number.

139057344 is an abundant number, since it is smaller than the sum of its proper divisors (269750576).

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

139057344 is an equidigital number, since it uses as much as digits as its factorization.

139057344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80494 (or 80478 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 139057344 is about 11792.2577990816. The cubic root of 139057344 is about 518.0813714141.

The spelling of 139057344 in words is "one hundred thirty-nine million, fifty-seven thousand, three hundred forty-four".