44401224 has 64 divisors (see below), whose sum is σ = 132387840. Its totient is φ = 12133440.

The previous prime is 44401219. The next prime is 44401261. The reversal of 44401224 is 42210444.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 44401224.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1882 + ... + 9609.

It is an arithmetic number, because the mean of its divisors is an integer number (2068560).

Almost surely, 2^44401224 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 44401224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66193920).

44401224 is an abundant number, since it is smaller than the sum of its proper divisors (87986616).

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

44401224 is a wasteful number, since it uses less digits than its factorization.

44401224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11530 (or 11526 counting only the distinct ones).

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

The square root of 44401224 is about 6663.4243448845. The cubic root of 44401224 is about 354.1046643819.

Adding to 44401224 its reverse (42210444), we get a palindrome (86611668).

The spelling of 44401224 in words is "forty-four million, four hundred one thousand, two hundred twenty-four".