139757044 has 24 divisors (see below), whose sum is σ = 281994048. Its totient is φ = 59364480.

The previous prime is 139756997. The next prime is 139757047. The reversal of 139757044 is 440757931.

It is a junction number, because it is equal to n+sod(n) for n = 139756988 and 139757006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139757047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18922 + ... + 25249.

It is an arithmetic number, because the mean of its divisors is an integer number (11749752).

Almost surely, 2^139757044 is an apocalyptic number.

139757044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

139757044 is an abundant number, since it is smaller than the sum of its proper divisors (142237004).

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

139757044 is a wasteful number, since it uses less digits than its factorization.

139757044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44295 (or 44293 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 139757044 is about 11821.8883432386. Note that the first 3 decimals coincide. The cubic root of 139757044 is about 518.9488677888.

The spelling of 139757044 in words is "one hundred thirty-nine million, seven hundred fifty-seven thousand, forty-four".