222004404 has 18 divisors (see below), whose sum is σ = 561177890. Its totient is φ = 74001456.

The previous prime is 222004373. The next prime is 222004429. The reversal of 222004404 is 404400222.

222004404 is a `hidden beast` number, since 2 + 220 + 0 + 440 + 4 = 666.

222004404 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 210308004 + 11696400 = 14502^2 + 3420^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3083359 + ... + 3083430.

Almost surely, 2^222004404 is an apocalyptic number.

It is an amenable number.

222004404 is an abundant number, since it is smaller than the sum of its proper divisors (339173486).

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

222004404 is a wasteful number, since it uses less digits than its factorization.

222004404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6166799 (or 6166794 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 222004404 is about 14899.8122135818. The cubic root of 222004404 is about 605.5088985939.

Adding to 222004404 its reverse (404400222), we get a palindrome (626404626).

The spelling of 222004404 in words is "two hundred twenty-two million, four thousand, four hundred four".