2222264440 has 32 divisors (see below), whose sum is σ = 5454650160. Its totient is φ = 808096000.

The previous prime is 2222264417. The next prime is 2222264459. The reversal of 2222264440 is 444622222.

It is a junction number, because it is equal to n+sod(n) for n = 2222264399 and 2222264408.

It is a congruent 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, 2524861 + ... + 2525740.

Almost surely, 2^2222264440 is an apocalyptic number.

2222264440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2222264440 is an abundant number, since it is smaller than the sum of its proper divisors (3232385720).

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

2222264440 is a wasteful number, since it uses less digits than its factorization.

2222264440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050623 (or 5050619 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 2222264440 is about 47140.8998641307. The cubic root of 2222264440 is about 1304.9641441879.

Adding to 2222264440 its reverse (444622222), we get a palindrome (2666886662).

It can be divided in two parts, 2222 and 264440, that added together give a palindrome (266662).

The spelling of 2222264440 in words is "two billion, two hundred twenty-two million, two hundred sixty-four thousand, four hundred forty".