222306606 has 24 divisors (see below), whose sum is σ = 499504824. Its totient is φ = 74102040.

The previous prime is 222306587. The next prime is 222306613. The reversal of 222306606 is 606603222.

It is a happy number.

222306606 is a `hidden beast` number, since 2 + 22 + 30 + 6 + 606 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 222306606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228225 + ... + 229196.

It is an arithmetic number, because the mean of its divisors is an integer number (20812701).

Almost surely, 2^222306606 is an apocalyptic number.

222306606 is an abundant number, since it is smaller than the sum of its proper divisors (277198218).

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

222306606 is an equidigital number, since it uses as much as digits as its factorization.

222306606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457438 (or 457426 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 222306606 is about 14909.9498993122. The cubic root of 222306606 is about 605.7835223253.

Adding to 222306606 its reverse (606603222), we get a palindrome (828909828).

The spelling of 222306606 in words is "two hundred twenty-two million, three hundred six thousand, six hundred six".