222684894 has 24 divisors (see below), whose sum is σ = 489096192. Its totient is φ = 73211040.

The previous prime is 222684893. The next prime is 222684911. The reversal of 222684894 is 498486222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222684893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83422 + ... + 86049.

It is an arithmetic number, because the mean of its divisors is an integer number (20379008).

Almost surely, 2^222684894 is an apocalyptic number.

222684894 is an abundant number, since it is smaller than the sum of its proper divisors (266411298).

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

222684894 is a wasteful number, since it uses less digits than its factorization.

222684894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169552 (or 169549 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 222684894 is about 14922.6302641324. The cubic root of 222684894 is about 606.1269380852.

The spelling of 222684894 in words is "two hundred twenty-two million, six hundred eighty-four thousand, eight hundred ninety-four".