44125421 has 4 divisors (see below), whose sum is σ = 46721052. Its totient is φ = 41529792.

The previous prime is 44125379. The next prime is 44125427. The reversal of 44125421 is 12452144.

44125421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 18369796 + 25755625 = 4286^2 + 5075^2 .

It is a cyclic number.

It is not a de Polignac number, because 44125421 - 2⁶ = 44125357 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 (44125427) 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 3 ways as a sum of consecutive naturals, for example, 1297790 + ... + 1297823.

It is an arithmetic number, because the mean of its divisors is an integer number (11680263).

Almost surely, 2^44125421 is an apocalyptic number.

It is an amenable number.

44125421 is a deficient number, since it is larger than the sum of its proper divisors (2595631).

44125421 is a wasteful number, since it uses less digits than its factorization.

44125421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2595630.

The product of its digits is 1280, while the sum is 23.

The square root of 44125421 is about 6642.6968168057. The cubic root of 44125421 is about 353.3699545722.

Adding to 44125421 its reverse (12452144), we get a palindrome (56577565).

The spelling of 44125421 in words is "forty-four million, one hundred twenty-five thousand, four hundred twenty-one".