222430865 has 8 divisors (see below), whose sum is σ = 274131240. Its totient is φ = 173135232.

The previous prime is 222430823. The next prime is 222430883. The reversal of 222430865 is 568034222.

It can be written as a sum of positive squares in 4 ways, for example, as 11135569 + 211295296 = 3337^2 + 14536^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222430865 - 2²⁰ = 221382289 is a prime.

It is a Curzon number.

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, 600980 + ... + 601349.

It is an arithmetic number, because the mean of its divisors is an integer number (34266405).

Almost surely, 2^222430865 is an apocalyptic number.

It is an amenable number.

222430865 is a deficient number, since it is larger than the sum of its proper divisors (51700375).

222430865 is a wasteful number, since it uses less digits than its factorization.

222430865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202371.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 222430865 is about 14914.1162996672. The cubic root of 222430865 is about 605.8963695254.

The spelling of 222430865 in words is "two hundred twenty-two million, four hundred thirty thousand, eight hundred sixty-five".