22003242400 has 36 divisors (see below), whose sum is σ = 53715417462. Its totient is φ = 8801296640.

The previous prime is 22003242397. The next prime is 22003242421. The reversal of 22003242400 is 424230022.

It can be written as a sum of positive squares in 3 ways, for example, as 12672455184 + 9330787216 = 112572^2 + 96596^2 .

It is a super-2 number, since 2×22003242400² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13751227 + ... + 13752826.

Almost surely, 2^22003242400 is an apocalyptic number.

22003242400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22003242400 is an abundant number, since it is smaller than the sum of its proper divisors (31712175062).

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

22003242400 is a wasteful number, since it uses less digits than its factorization.

22003242400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27504073 (or 27504060 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 22003242400 its reverse (424230022), we get a palindrome (22427472422).

The spelling of 22003242400 in words is "twenty-two billion, three million, two hundred forty-two thousand, four hundred".