22004242240 has 28 divisors (see below), whose sum is σ = 52397602596. Its totient is φ = 8801696768.

The previous prime is 22004242223. The next prime is 22004242241. The reversal of 22004242240 is 4224240022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12433142016 + 9571100224 = 111504^2 + 97832^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22004242241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34381309 + ... + 34381948.

Almost surely, 2^22004242240 is an apocalyptic number.

22004242240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22004242240 is an abundant number, since it is smaller than the sum of its proper divisors (30393360356).

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

22004242240 is an equidigital number, since it uses as much as digits as its factorization.

22004242240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68763274 (or 68763264 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 22004242240 its reverse (4224240022), we get a palindrome (26228482262).

The spelling of 22004242240 in words is "twenty-two billion, four million, two hundred forty-two thousand, two hundred forty".