222418490 has 32 divisors (see below), whose sum is σ = 472310784. Its totient is φ = 73797120.

The previous prime is 222418477. The next prime is 222418499. The reversal of 222418490 is 94814222.

It is a happy number.

222418490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222418499) 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, 49079 + ... + 53418.

It is an arithmetic number, because the mean of its divisors is an integer number (14759712).

Almost surely, 2^222418490 is an apocalyptic number.

222418490 is an abundant number, since it is smaller than the sum of its proper divisors (249892294).

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

222418490 is a wasteful number, since it uses less digits than its factorization.

222418490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102542.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 222418490 is about 14913.7014184943. The cubic root of 222418490 is about 605.8851329154.

The spelling of 222418490 in words is "two hundred twenty-two million, four hundred eighteen thousand, four hundred ninety".