44242121 has 32 divisors (see below), whose sum is σ = 57915648. Its totient is φ = 32797440.

The previous prime is 44242097. The next prime is 44242147. The reversal of 44242121 is 12124244.

It is a cyclic number.

It is not a de Polignac number, because 44242121 - 2¹⁰ = 44241097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44242093 and 44242102.

It is not an unprimeable number, because it can be changed into a prime (44242021) 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 31 ways as a sum of consecutive naturals, for example, 150851 + ... + 151143.

It is an arithmetic number, because the mean of its divisors is an integer number (1809864).

Almost surely, 2^44242121 is an apocalyptic number.

It is an amenable number.

44242121 is a deficient number, since it is larger than the sum of its proper divisors (13673527).

44242121 is a wasteful number, since it uses less digits than its factorization.

44242121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401.

The product of its digits is 512, while the sum is 20.

The square root of 44242121 is about 6651.4750995550. The cubic root of 44242121 is about 353.6812035177.

Adding to 44242121 its reverse (12124244), we get a palindrome (56366365).

The spelling of 44242121 in words is "forty-four million, two hundred forty-two thousand, one hundred twenty-one".