44043121 has 4 divisors (see below), whose sum is σ = 46361200. Its totient is φ = 41725044.

The previous prime is 44043113. The next prime is 44043127. The reversal of 44043121 is 12134044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 44043121 - 2³ = 44043113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 2318059 = 44043121 / (4 + 4 + 0 + 4 + 3 + 1 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44043127) 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, 1159011 + ... + 1159048.

It is an arithmetic number, because the mean of its divisors is an integer number (11590300).

Almost surely, 2^44043121 is an apocalyptic number.

It is an amenable number.

44043121 is a deficient number, since it is larger than the sum of its proper divisors (2318079).

44043121 is a wasteful number, since it uses less digits than its factorization.

44043121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318078.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 44043121 is about 6636.4991524146. The cubic root of 44043121 is about 353.1501232654.

Adding to 44043121 its reverse (12134044), we get a palindrome (56177165).

The spelling of 44043121 in words is "forty-four million, forty-three thousand, one hundred twenty-one".