222863616 has 144 divisors (see below), whose sum is σ = 694142400. Its totient is φ = 70336512.

The previous prime is 222863603. The next prime is 222863633. The reversal of 222863616 is 616368222.

222863616 is a `hidden beast` number, since 2 + 2 + 2 + 8 + 636 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 15 ways as a sum of consecutive naturals, for example, 130480 + ... + 132176.

Almost surely, 2^222863616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222863616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347071200).

222863616 is an abundant number, since it is smaller than the sum of its proper divisors (471278784).

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

222863616 is a wasteful number, since it uses less digits than its factorization.

222863616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741 (or 1721 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 222863616 is about 14928.6173505787. The cubic root of 222863616 is about 606.2890494421.

The spelling of 222863616 in words is "two hundred twenty-two million, eight hundred sixty-three thousand, six hundred sixteen".