222404346 has 16 divisors (see below), whose sum is σ = 494232000. Its totient is φ = 74134764.

The previous prime is 222404327. The next prime is 222404407. The reversal of 222404346 is 643404222.

222404346 is a `hidden beast` number, since 2 + 224 + 0 + 434 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2059246 + ... + 2059353.

It is an arithmetic number, because the mean of its divisors is an integer number (30889500).

Almost surely, 2^222404346 is an apocalyptic number.

222404346 is an abundant number, since it is smaller than the sum of its proper divisors (271827654).

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

222404346 is a wasteful number, since it uses less digits than its factorization.

222404346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4118610 (or 4118604 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 222404346 is about 14913.2272161327. The cubic root of 222404346 is about 605.8722895273.

Adding to 222404346 its reverse (643404222), we get a palindrome (865808568).

The spelling of 222404346 in words is "two hundred twenty-two million, four hundred four thousand, three hundred forty-six".