222022440 has 48 divisors (see below), whose sum is σ = 721574100. Its totient is φ = 59205888.

The previous prime is 222022433. The next prime is 222022453. The reversal of 222022440 is 44220222.

222022440 is a `hidden beast` number, since 2 + 220 + 2 + 2 + 440 = 666.

222022440 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 204432804 + 17589636 = 14298^2 + 4194^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 308005 + ... + 308724.

Almost surely, 2^222022440 is an apocalyptic number.

222022440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222022440 is an abundant number, since it is smaller than the sum of its proper divisors (499551660).

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

222022440 is a wasteful number, since it uses less digits than its factorization.

222022440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616746 (or 616739 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 222022440 is about 14900.4174438168. The cubic root of 222022440 is about 605.5252956602.

Adding to 222022440 its reverse (44220222), we get a palindrome (266242662).

It can be divided in two parts, 22202 and 2440, that added together give a palindrome (24642).

The spelling of 222022440 in words is "two hundred twenty-two million, twenty-two thousand, four hundred forty".