22240282440 has 32 divisors (see below), whose sum is σ = 66720847680. Its totient is φ = 5930741952.

The previous prime is 22240282399. The next prime is 22240282457. The reversal of 22240282440 is 4428204222.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 22240282398 and 22240282407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92667724 + ... + 92667963.

It is an arithmetic number, because the mean of its divisors is an integer number (2085026490).

Almost surely, 2^22240282440 is an apocalyptic number.

22240282440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22240282440 is an abundant number, since it is smaller than the sum of its proper divisors (44480565240).

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

22240282440 is a wasteful number, since it uses less digits than its factorization.

22240282440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185335701 (or 185335697 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 30.

Adding to 22240282440 its reverse (4428204222), we get a palindrome (26668486662).

The spelling of 22240282440 in words is "twenty-two billion, two hundred forty million, two hundred eighty-two thousand, four hundred forty".