22400420404 has 12 divisors (see below), whose sum is σ = 39236091300. Its totient is φ = 11190108608.

The previous prime is 22400420359. The next prime is 22400420423. The reversal of 22400420404 is 40402400422.

It can be written as a sum of positive squares in 2 ways, for example, as 2400804004 + 19999616400 = 48998^2 + 141420^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2520409 + ... + 2529280.

It is an arithmetic number, because the mean of its divisors is an integer number (3269674275).

Almost surely, 2^22400420404 is an apocalyptic number.

It is an amenable number.

22400420404 is a deficient number, since it is larger than the sum of its proper divisors (16835670896).

22400420404 is a wasteful number, since it uses less digits than its factorization.

22400420404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5050802 (or 5050800 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 22400420404 its reverse (40402400422), we get a palindrome (62802820826).

The spelling of 22400420404 in words is "twenty-two billion, four hundred million, four hundred twenty thousand, four hundred four".