44422421 has 8 divisors (see below), whose sum is σ = 44856504. Its totient is φ = 43990720.

The previous prime is 44422409. The next prime is 44422423. The reversal of 44422421 is 12422444.

44422421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3845521 + 40576900 = 1961^2 + 6370^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44422421 - 2¹⁰ = 44421397 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 (44422423) 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 7 ways as a sum of consecutive naturals, for example, 79475 + ... + 80031.

It is an arithmetic number, because the mean of its divisors is an integer number (5607063).

Almost surely, 2^44422421 is an apocalyptic number.

It is an amenable number.

44422421 is a deficient number, since it is larger than the sum of its proper divisors (434083).

44422421 is a wasteful number, since it uses less digits than its factorization.

44422421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191.

The product of its digits is 2048, while the sum is 23.

The square root of 44422421 is about 6665.0147036597. The cubic root of 44422421 is about 354.1610048891.

Adding to 44422421 its sum of digits (23), we get a palindrome (44422444).

Adding to 44422421 its reverse (12422444), we get a palindrome (56844865).

The spelling of 44422421 in words is "forty-four million, four hundred twenty-two thousand, four hundred twenty-one".