222640363 has 16 divisors (see below), whose sum is σ = 250168320. Its totient is φ = 198038280.

The previous prime is 222640351. The next prime is 222640367. The reversal of 222640363 is 363046222.

It is a de Polignac number, because none of the positive numbers 2^k-222640363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222640367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60778 + ... + 64336.

It is an arithmetic number, because the mean of its divisors is an integer number (15635520).

Almost surely, 2^222640363 is an apocalyptic number.

222640363 is a deficient number, since it is larger than the sum of its proper divisors (27527957).

222640363 is an equidigital number, since it uses as much as digits as its factorization.

222640363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3639 (or 3617 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 222640363 is about 14921.1381268320. The cubic root of 222640363 is about 606.0865323538.

Adding to 222640363 its reverse (363046222), we get a palindrome (585686585).

The spelling of 222640363 in words is "two hundred twenty-two million, six hundred forty thousand, three hundred sixty-three".