222640362 has 96 divisors (see below), whose sum is σ = 568713600. Its totient is φ = 61637760.

The previous prime is 222640351. The next prime is 222640367. The reversal of 222640362 is 263046222.

222640362 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 47 ways as a sum of consecutive naturals, for example, 637764 + ... + 638112.

It is an arithmetic number, because the mean of its divisors is an integer number (5924100).

Almost surely, 2^222640362 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222640362, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284356800).

222640362 is an abundant number, since it is smaller than the sum of its proper divisors (346073238).

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

222640362 is a wasteful number, since it uses less digits than its factorization.

222640362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508 (or 505 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 222640362 is about 14921.1380933225. The cubic root of 222640362 is about 606.0865314464.

Adding to 222640362 its reverse (263046222), we get a palindrome (485686584).

The spelling of 222640362 in words is "two hundred twenty-two million, six hundred forty thousand, three hundred sixty-two".