44171138 has 32 divisors (see below), whose sum is σ = 74086272. Its totient is φ = 19584000.

The previous prime is 44171131. The next prime is 44171161. The reversal of 44171138 is 83117144.

It is a self number, because there is not a number n which added to its sum of digits gives 44171138.

It is not an unprimeable number, because it can be changed into a prime (44171131) 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, 228770 + ... + 228962.

It is an arithmetic number, because the mean of its divisors is an integer number (2315196).

Almost surely, 2^44171138 is an apocalyptic number.

44171138 is a deficient number, since it is larger than the sum of its proper divisors (29915134).

44171138 is a wasteful number, since it uses less digits than its factorization.

44171138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410.

The product of its digits is 2688, while the sum is 29.

The square root of 44171138 is about 6646.1370735187. The cubic root of 44171138 is about 353.4919510527.

It can be divided in two parts, 4417 and 1138, that added together give a palindrome (5555).

The spelling of 44171138 in words is "forty-four million, one hundred seventy-one thousand, one hundred thirty-eight".