44418121 has 4 divisors (see below), whose sum is σ = 48456144. Its totient is φ = 40380100.

The previous prime is 44418113. The next prime is 44418131. The reversal of 44418121 is 12181444.

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 44418121 - 2³ = 44418113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44418131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2018995 + ... + 2019016.

It is an arithmetic number, because the mean of its divisors is an integer number (12114036).

Almost surely, 2^44418121 is an apocalyptic number.

It is an amenable number.

44418121 is a deficient number, since it is larger than the sum of its proper divisors (4038023).

44418121 is a wasteful number, since it uses less digits than its factorization.

44418121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4038022.

The product of its digits is 1024, while the sum is 25.

The square root of 44418121 is about 6664.6921159195. The cubic root of 44418121 is about 354.1495771654.

Adding to 44418121 its reverse (12181444), we get a palindrome (56599565).

The spelling of 44418121 in words is "forty-four million, four hundred eighteen thousand, one hundred twenty-one".