440221224 has 32 divisors (see below), whose sum is σ = 1102597920. Its totient is φ = 146467776.

The previous prime is 440221217. The next prime is 440221261. The reversal of 440221224 is 422122044.

It is a self number, because there is not a number n which added to its sum of digits gives 440221224.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3639 + ... + 29894.

It is an arithmetic number, because the mean of its divisors is an integer number (34456185).

Almost surely, 2^440221224 is an apocalyptic number.

It is an amenable number.

440221224 is an abundant number, since it is smaller than the sum of its proper divisors (662376696).

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

440221224 is a wasteful number, since it uses less digits than its factorization.

440221224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34089 (or 34085 counting only the distinct ones).

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

The square root of 440221224 is about 20981.4495209459. The cubic root of 440221224 is about 760.7179411518.

Adding to 440221224 its reverse (422122044), we get a palindrome (862343268).

The spelling of 440221224 in words is "four hundred forty million, two hundred twenty-one thousand, two hundred twenty-four".