222644365 has 8 divisors (see below), whose sum is σ = 267441048. Its totient is φ = 177936960.

The previous prime is 222644363. The next prime is 222644377. The reversal of 222644365 is 563446222.

It can be written as a sum of positive squares in 4 ways, for example, as 51008164 + 171636201 = 7142^2 + 13101^2 .

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

It is not a de Polignac number, because 222644365 - 2¹ = 222644363 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222644365.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222644363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16702 + ... + 26911.

It is an arithmetic number, because the mean of its divisors is an integer number (33430131).

Almost surely, 2^222644365 is an apocalyptic number.

It is an amenable number.

222644365 is a deficient number, since it is larger than the sum of its proper divisors (44796683).

222644365 is a wasteful number, since it uses less digits than its factorization.

222644365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44639.

The product of its digits is 69120, while the sum is 34.

The square root of 222644365 is about 14921.2722312811. The cubic root of 222644365 is about 606.0901638363.

The spelling of 222644365 in words is "two hundred twenty-two million, six hundred forty-four thousand, three hundred sixty-five".