222785634 has 16 divisors (see below), whose sum is σ = 451675872. Its totient is φ = 73244448.

The previous prime is 222785599. The next prime is 222785639. The reversal of 222785634 is 436587222.

222785634 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 222785592 and 222785601.

It is not an unprimeable number, because it can be changed into a prime (222785639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253884 + ... + 254759.

It is an arithmetic number, because the mean of its divisors is an integer number (28229742).

Almost surely, 2^222785634 is an apocalyptic number.

222785634 is an abundant number, since it is smaller than the sum of its proper divisors (228890238).

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

222785634 is a wasteful number, since it uses less digits than its factorization.

222785634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508721.

The product of its digits is 161280, while the sum is 39.

The square root of 222785634 is about 14926.0052927768. The cubic root of 222785634 is about 606.2183258472.

The spelling of 222785634 in words is "two hundred twenty-two million, seven hundred eighty-five thousand, six hundred thirty-four".