222326816 has 24 divisors (see below), whose sum is σ = 463454460. Its totient is φ = 104624128.

The previous prime is 222326807. The next prime is 222326827. The reversal of 222326816 is 618623222.

It can be written as a sum of positive squares in 2 ways, for example, as 219158416 + 3168400 = 14804^2 + 1780^2 .

It is a super-2 number, since 2×222326816² = 98858426225395712, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203801 + ... + 204888.

Almost surely, 2^222326816 is an apocalyptic number.

It is an amenable number.

222326816 is an abundant number, since it is smaller than the sum of its proper divisors (241127644).

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

222326816 is a wasteful number, since it uses less digits than its factorization.

222326816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408716 (or 408708 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 222326816 is about 14910.6276192520. The cubic root of 222326816 is about 605.8018791257.

The spelling of 222326816 in words is "two hundred twenty-two million, three hundred twenty-six thousand, eight hundred sixteen".