222816264 has 32 divisors (see below), whose sum is σ = 607681440. Its totient is φ = 67520000.

The previous prime is 222816241. The next prime is 222816281. The reversal of 222816264 is 462618222.

It is a Harshad number since it is a multiple of its sum of digits (33).

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421737 + ... + 422264.

It is an arithmetic number, because the mean of its divisors is an integer number (18990045).

Almost surely, 2^222816264 is an apocalyptic number.

222816264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

222816264 is an abundant number, since it is smaller than the sum of its proper divisors (384865176).

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

222816264 is a wasteful number, since it uses less digits than its factorization.

222816264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844021 (or 844017 counting only the distinct ones).

The product of its digits is 18432, while the sum is 33.

The square root of 222816264 is about 14927.0313190534. The cubic root of 222816264 is about 606.2461068372.

The spelling of 222816264 in words is "two hundred twenty-two million, eight hundred sixteen thousand, two hundred sixty-four".