44091839 has 4 divisors (see below), whose sum is σ = 48100200. Its totient is φ = 40083480.

The previous prime is 44091797. The next prime is 44091857. The reversal of 44091839 is 93819044.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 44091839 - 2²⁰ = 43043263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44091239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2004164 + ... + 2004185.

It is an arithmetic number, because the mean of its divisors is an integer number (12025050).

Almost surely, 2^44091839 is an apocalyptic number.

44091839 is a deficient number, since it is larger than the sum of its proper divisors (4008361).

44091839 is a wasteful number, since it uses less digits than its factorization.

44091839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4008360.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 44091839 is about 6640.1685972572. The cubic root of 44091839 is about 353.2802868230.

The spelling of 44091839 in words is "forty-four million, ninety-one thousand, eight hundred thirty-nine".