44057139 has 8 divisors (see below), whose sum is σ = 67134720. Its totient is φ = 25175496.

The previous prime is 44057131. The next prime is 44057191. The reversal of 44057139 is 93175044.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 44057139 - 2³ = 44057131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44057131) 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, 1048959 + ... + 1049000.

It is an arithmetic number, because the mean of its divisors is an integer number (8391840).

Almost surely, 2^44057139 is an apocalyptic number.

44057139 is a deficient number, since it is larger than the sum of its proper divisors (23077581).

44057139 is a wasteful number, since it uses less digits than its factorization.

44057139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097969.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 44057139 is about 6637.5551975106. Note that the first 3 decimals coincide. The cubic root of 44057139 is about 353.1875860458.

The spelling of 44057139 in words is "forty-four million, fifty-seven thousand, one hundred thirty-nine".