22303240400 has 120 divisors (see below), whose sum is σ = 61402825920. Its totient is φ = 7626286080.

The previous prime is 22303240381. The next prime is 22303240409. The reversal of 22303240400 is 404230322.

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 (22303240409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1050692 + ... + 1071708.

It is an arithmetic number, because the mean of its divisors is an integer number (511690216).

Almost surely, 2^22303240400 is an apocalyptic number.

22303240400 is a gapful number since it is divisible by the number (20) 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 22303240400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30701412960).

22303240400 is an abundant number, since it is smaller than the sum of its proper divisors (39099585520).

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

22303240400 is a wasteful number, since it uses less digits than its factorization.

22303240400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21421 (or 21410 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 22303240400 its reverse (404230322), we get a palindrome (22707470722).

The spelling of 22303240400 in words is "twenty-two billion, three hundred three million, two hundred forty thousand, four hundred".