22020024440 has 16 divisors (see below), whose sum is σ = 49545055080. Its totient is φ = 8808009760.

The previous prime is 22020024437. The next prime is 22020024443. The reversal of 22020024440 is 4442002022.

It is an interprime number because it is at equal distance from previous prime (22020024437) and next prime (22020024443).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22020024443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275250266 + ... + 275250345.

Almost surely, 2^22020024440 is an apocalyptic number.

22020024440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22020024440 is an abundant number, since it is smaller than the sum of its proper divisors (27525030640).

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

22020024440 is a wasteful number, since it uses less digits than its factorization.

22020024440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550500622 (or 550500618 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 22020024440 its reverse (4442002022), we get a palindrome (26462026462).

The spelling of 22020024440 in words is "twenty-two billion, twenty million, twenty-four thousand, four hundred forty".