44139634 has 32 divisors (see below), whose sum is σ = 82861056. Its totient is φ = 17131920.

The previous prime is 44139617. The next prime is 44139637. The reversal of 44139634 is 43693144.

It is a self number, because there is not a number n which added to its sum of digits gives 44139634.

It is not an unprimeable number, because it can be changed into a prime (44139637) 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, 67899 + ... + 68545.

It is an arithmetic number, because the mean of its divisors is an integer number (2589408).

Almost surely, 2^44139634 is an apocalyptic number.

44139634 is a deficient number, since it is larger than the sum of its proper divisors (38721422).

44139634 is a wasteful number, since it uses less digits than its factorization.

44139634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110.

The product of its digits is 31104, while the sum is 34.

The square root of 44139634 is about 6643.7665521901. The cubic root of 44139634 is about 353.4078911924.

The spelling of 44139634 in words is "forty-four million, one hundred thirty-nine thousand, six hundred thirty-four".