222910864 has 20 divisors (see below), whose sum is σ = 471152880. Its totient is φ = 101323040.

The previous prime is 222910861. The next prime is 222910879. The reversal of 222910864 is 468019222.

It is not an unprimeable number, because it can be changed into a prime (222910861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633094 + ... + 633445.

It is an arithmetic number, because the mean of its divisors is an integer number (23557644).

Almost surely, 2^222910864 is an apocalyptic number.

It is an amenable number.

222910864 is an abundant number, since it is smaller than the sum of its proper divisors (248242016).

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

222910864 is a wasteful number, since it uses less digits than its factorization.

222910864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266558 (or 1266552 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 222910864 is about 14930.1997307471. The cubic root of 222910864 is about 606.3318916691.

The spelling of 222910864 in words is "two hundred twenty-two million, nine hundred ten thousand, eight hundred sixty-four".