223440404 has 12 divisors (see below), whose sum is σ = 426568128. Its totient is φ = 101563800.

The previous prime is 223440403. The next prime is 223440409. The reversal of 223440404 is 404044322.

It is a super-2 number, since 2×223440404² = 99851228279366432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 223440404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223440403) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2539052 + ... + 2539139.

It is an arithmetic number, because the mean of its divisors is an integer number (35547344).

Almost surely, 2^223440404 is an apocalyptic number.

It is an amenable number.

223440404 is a deficient number, since it is larger than the sum of its proper divisors (203127724).

223440404 is a wasteful number, since it uses less digits than its factorization.

223440404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5078206 (or 5078204 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 223440404 is about 14947.9230664330. The cubic root of 223440404 is about 606.8116396012.

Adding to 223440404 its reverse (404044322), we get a palindrome (627484726).

The spelling of 223440404 in words is "two hundred twenty-three million, four hundred forty thousand, four hundred four".