223421244 has 48 divisors (see below), whose sum is σ = 539460768. Its totient is φ = 71912448.

The previous prime is 223421189. The next prime is 223421251. The reversal of 223421244 is 442124322.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 58992 + ... + 62664.

It is an arithmetic number, because the mean of its divisors is an integer number (11238766).

Almost surely, 2^223421244 is an apocalyptic number.

It is an amenable number.

223421244 is an abundant number, since it is smaller than the sum of its proper divisors (316039524).

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

223421244 is a wasteful number, since it uses less digits than its factorization.

223421244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3854 (or 3852 counting only the distinct ones).

The product of its digits is 3072, while the sum is 24.

The square root of 223421244 is about 14947.2821609816. The cubic root of 223421244 is about 606.7942944193.

Adding to 223421244 its reverse (442124322), we get a palindrome (665545566).

The spelling of 223421244 in words is "two hundred twenty-three million, four hundred twenty-one thousand, two hundred forty-four".