44023421 has 16 divisors (see below), whose sum is σ = 51937200. Its totient is φ = 36922368.

The previous prime is 44023417. The next prime is 44023423. The reversal of 44023421 is 12432044.

It can be written as a sum of positive squares in 8 ways, for example, as 5707321 + 38316100 = 2389^2 + 6190^2 .

It is not a de Polignac number, because 44023421 - 2² = 44023417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44023393 and 44023402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44023423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2975 + ... + 9843.

It is an arithmetic number, because the mean of its divisors is an integer number (3246075).

Almost surely, 2^44023421 is an apocalyptic number.

It is an amenable number.

44023421 is a deficient number, since it is larger than the sum of its proper divisors (7913779).

44023421 is a wasteful number, since it uses less digits than its factorization.

44023421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6928.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 44023421 is about 6635.0147701418. The cubic root of 44023421 is about 353.0974620340.

Adding to 44023421 its reverse (12432044), we get a palindrome (56455465).

It can be divided in two parts, 44023 and 421, that added together give a palindrome (44444).

The spelling of 44023421 in words is "forty-four million, twenty-three thousand, four hundred twenty-one".