44540121 has 16 divisors (see below), whose sum is σ = 62760960. Its totient is φ = 28039440.

The previous prime is 44540117. The next prime is 44540173. The reversal of 44540121 is 12104544.

It is a happy number.

44540121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 44540121 - 2² = 44540117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44540191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1366 + ... + 9536.

It is an arithmetic number, because the mean of its divisors is an integer number (3922560).

Almost surely, 2^44540121 is an apocalyptic number.

It is an amenable number.

44540121 is a deficient number, since it is larger than the sum of its proper divisors (18220839).

44540121 is a wasteful number, since it uses less digits than its factorization.

44540121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8276.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 44540121 is about 6673.8385506394. The cubic root of 44540121 is about 354.4735196656.

Adding to 44540121 its reverse (12104544), we get a palindrome (56644665).

The spelling of 44540121 in words is "forty-four million, five hundred forty thousand, one hundred twenty-one".