222045404 has 24 divisors (see below), whose sum is σ = 463400448. Its totient is φ = 91024560.

The previous prime is 222045401. The next prime is 222045407. The reversal of 222045404 is 404540222.

222045404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (222045401) and next prime (222045407).

It is a super-2 number, since 2×222045404² = 98608322875046432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 222045404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222045401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171752 + ... + 173039.

It is an arithmetic number, because the mean of its divisors is an integer number (19308352).

Almost surely, 2^222045404 is an apocalyptic number.

It is an amenable number.

222045404 is an abundant number, since it is smaller than the sum of its proper divisors (241355044).

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

222045404 is a wasteful number, since it uses less digits than its factorization.

222045404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344825 (or 344823 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 222045404 is about 14901.1880063302. The cubic root of 222045404 is about 605.5461716334.

Adding to 222045404 its reverse (404540222), we get a palindrome (626585626).

The spelling of 222045404 in words is "two hundred twenty-two million, forty-five thousand, four hundred four".