222686496 has 120 divisors (see below), whose sum is σ = 667683324. Its totient is φ = 72783360.

The previous prime is 222686491. The next prime is 222686521. The reversal of 222686496 is 694686222.

It can be written as a sum of positive squares in 2 ways, for example, as 208398096 + 14288400 = 14436^2 + 3780^2 .

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (222686491) 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 19 ways as a sum of consecutive naturals, for example, 136566 + ... + 138186.

Almost surely, 2^222686496 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222686496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333841662).

222686496 is an abundant number, since it is smaller than the sum of its proper divisors (444996828).

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

222686496 is a wasteful number, since it uses less digits than its factorization.

222686496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696 (or 1679 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 222686496 is about 14922.6839409002. The cubic root of 222686496 is about 606.1283915786.

The spelling of 222686496 in words is "two hundred twenty-two million, six hundred eighty-six thousand, four hundred ninety-six".