223440344 has 8 divisors (see below), whose sum is σ = 418950660. Its totient is φ = 111720168.

The previous prime is 223440319. The next prime is 223440379. The reversal of 223440344 is 443044322.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13965014 + ... + 13965029.

Almost surely, 2^223440344 is an apocalyptic number.

It is an amenable number.

223440344 is a deficient number, since it is larger than the sum of its proper divisors (195510316).

223440344 is a wasteful number, since it uses less digits than its factorization.

223440344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27930049 (or 27930045 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

The square root of 223440344 is about 14947.9210594651. The cubic root of 223440344 is about 606.8115852859.

Adding to 223440344 its reverse (443044322), we get a palindrome (666484666).

The spelling of 223440344 in words is "two hundred twenty-three million, four hundred forty thousand, three hundred forty-four".