222642366 has 8 divisors (see below), whose sum is σ = 445284744. Its totient is φ = 74214120.

The previous prime is 222642359. The next prime is 222642379. The reversal of 222642366 is 663246222.

It is a sphenic number, since it is the product of 3 distinct primes.

222642366 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 18553525 + ... + 18553536.

It is an arithmetic number, because the mean of its divisors is an integer number (55660593).

Almost surely, 2^222642366 is an apocalyptic number.

222642366 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

222642366 is a wasteful number, since it uses less digits than its factorization.

222642366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37107066.

The product of its digits is 41472, while the sum is 33.

The square root of 222642366 is about 14921.2052462259. The cubic root of 222642366 is about 606.0883499153.

Adding to 222642366 its reverse (663246222), we get a palindrome (885888588).

The spelling of 222642366 in words is "two hundred twenty-two million, six hundred forty-two thousand, three hundred sixty-six".