222423404 has 48 divisors (see below), whose sum is σ = 459841536. Its totient is φ = 92164800.

The previous prime is 222423389. The next prime is 222423407. The reversal of 222423404 is 404324222.

222423404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 222423404.

It is not an unprimeable number, because it can be changed into a prime (222423407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104309 + ... + 106419.

It is an arithmetic number, because the mean of its divisors is an integer number (9580032).

Almost surely, 2^222423404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222423404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229920768).

222423404 is an abundant number, since it is smaller than the sum of its proper divisors (237418132).

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

222423404 is a wasteful number, since it uses less digits than its factorization.

222423404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2246 (or 2244 counting only the distinct ones).

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

The square root of 222423404 is about 14913.8661654180. The cubic root of 222423404 is about 605.8895949210.

Adding to 222423404 its reverse (404324222), we get a palindrome (626747626).

The spelling of 222423404 in words is "two hundred twenty-two million, four hundred twenty-three thousand, four hundred four".