22420022424 has 64 divisors (see below), whose sum is σ = 57607027200. Its totient is φ = 7266040704.

The previous prime is 22420022413. The next prime is 22420022437. The reversal of 22420022424 is 42422002422.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 22420022394 and 22420022403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1311967 + ... + 1328945.

It is an arithmetic number, because the mean of its divisors is an integer number (900109800).

Almost surely, 2^22420022424 is an apocalyptic number.

22420022424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22420022424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28803513600).

22420022424 is an abundant number, since it is smaller than the sum of its proper divisors (35187004776).

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

22420022424 is a wasteful number, since it uses less digits than its factorization.

22420022424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18512 (or 18508 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 22420022424 its reverse (42422002422), we get a palindrome (64842024846).

The spelling of 22420022424 in words is "twenty-two billion, four hundred twenty million, twenty-two thousand, four hundred twenty-four".