22424200400 has 60 divisors (see below), whose sum is σ = 61570455072. Its totient is φ = 7688296320.

The previous prime is 22424200369. The next prime is 22424200411. The reversal of 22424200400 is 400242422.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4001522 + ... + 4007121.

Almost surely, 2^22424200400 is an apocalyptic number.

22424200400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22424200400 is an abundant number, since it is smaller than the sum of its proper divisors (39146254672).

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

22424200400 is a wasteful number, since it uses less digits than its factorization.

22424200400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8008668 (or 8008657 counting only the distinct ones).

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

Adding to 22424200400 its reverse (400242422), we get a palindrome (22824442822).

The spelling of 22424200400 in words is "twenty-two billion, four hundred twenty-four million, two hundred thousand, four hundred".