222332664 has 64 divisors (see below), whose sum is σ = 590747040. Its totient is φ = 69488640.

The previous prime is 222332659. The next prime is 222332683. The reversal of 222332664 is 466233222.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126834 + ... + 128574.

Almost surely, 2^222332664 is an apocalyptic number.

222332664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222332664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295373520).

222332664 is an abundant number, since it is smaller than the sum of its proper divisors (368414376).

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

222332664 is a wasteful number, since it uses less digits than its factorization.

222332664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2080 (or 2076 counting only the distinct ones).

The product of its digits is 20736, while the sum is 30.

The square root of 222332664 is about 14910.8237197011. The cubic root of 222332664 is about 605.8071906732.

Adding to 222332664 its reverse (466233222), we get a palindrome (688565886).

The spelling of 222332664 in words is "two hundred twenty-two million, three hundred thirty-two thousand, six hundred sixty-four".