44421420 has 96 divisors (see below), whose sum is σ = 129366720. Its totient is φ = 11381760.

The previous prime is 44421407. The next prime is 44421457. The reversal of 44421420 is 2412444.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 193866 + ... + 194094.

It is an arithmetic number, because the mean of its divisors is an integer number (1347570).

Almost surely, 2^44421420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44421420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64683360).

44421420 is an abundant number, since it is smaller than the sum of its proper divisors (84945300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44421420 is a wasteful number, since it uses less digits than its factorization.

44421420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355 (or 353 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 44421420 is about 6664.9396096289. The cubic root of 44421420 is about 354.1583446872.

Adding to 44421420 its product of nonzero digits (1024), we get a palindrome (44422444).

Adding to 44421420 its reverse (2412444), we get a palindrome (46833864).

The spelling of 44421420 in words is "forty-four million, four hundred twenty-one thousand, four hundred twenty".