22400404400 has 60 divisors (see below), whose sum is σ = 58709435064. Its totient is φ = 8145600000.

The previous prime is 22400404387. The next prime is 22400404409. The reversal of 22400404400 is 440400422.

It is a super-3 number, since 3×22400404400³ (a number of 32 digits) contains 333 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (22400404409) 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 11 ways as a sum of consecutive naturals, for example, 2541101 + ... + 2549900.

Almost surely, 2^22400404400 is an apocalyptic number.

22400404400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22400404400 is an abundant number, since it is smaller than the sum of its proper divisors (36309030664).

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

22400404400 is a wasteful number, since it uses less digits than its factorization.

22400404400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5091030 (or 5091019 counting only the distinct ones).

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

Adding to 22400404400 its reverse (440400422), we get a palindrome (22840804822).

The spelling of 22400404400 in words is "twenty-two billion, four hundred million, four hundred four thousand, four hundred".