222868864 has 16 divisors (see below), whose sum is σ = 443996820. Its totient is φ = 111434368.

The previous prime is 222868853. The next prime is 222868897. The reversal of 222868864 is 468868222.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 870454 + ... + 870709.

Almost surely, 2^222868864 is an apocalyptic number.

It is an amenable number.

222868864 is a deficient number, since it is larger than the sum of its proper divisors (221127956).

222868864 is an equidigital number, since it uses as much as digits as its factorization.

222868864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1741177 (or 1741165 counting only the distinct ones).

The product of its digits is 589824, while the sum is 46.

The square root of 222868864 is about 14928.7931193382. The cubic root of 222868864 is about 606.2938083764.

The spelling of 222868864 in words is "two hundred twenty-two million, eight hundred sixty-eight thousand, eight hundred sixty-four".