222200406 has 24 divisors (see below), whose sum is σ = 481709280. Its totient is φ = 74024496.

The previous prime is 222200399. The next prime is 222200411. The reversal of 222200406 is 604002222.

It is a happy number.

222200406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11 ways as a sum of consecutive naturals, for example, 56211 + ... + 60033.

It is an arithmetic number, because the mean of its divisors is an integer number (20071220).

Almost surely, 2^222200406 is an apocalyptic number.

222200406 is an abundant number, since it is smaller than the sum of its proper divisors (259508874).

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

222200406 is a wasteful number, since it uses less digits than its factorization.

222200406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7060 (or 7057 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 222200406 is about 14906.3880937000. The cubic root of 222200406 is about 605.6870422754.

Adding to 222200406 its reverse (604002222), we get a palindrome (826202628).

The spelling of 222200406 in words is "two hundred twenty-two million, two hundred thousand, four hundred six".