22404100431 has 16 divisors (see below), whose sum is σ = 29966932224. Its totient is φ = 14888738304.

The previous prime is 22404100417. The next prime is 22404100441. The reversal of 22404100431 is 13400140422.

It is not a de Polignac number, because 22404100431 - 2¹⁵ = 22404067663 is a prime.

It is a super-2 number, since 2×22404100431² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22404100398 and 22404100407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22404100441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1375471 + ... + 1391663.

It is an arithmetic number, because the mean of its divisors is an integer number (1872933264).

Almost surely, 2^22404100431 is an apocalyptic number.

22404100431 is a deficient number, since it is larger than the sum of its proper divisors (7562831793).

22404100431 is a wasteful number, since it uses less digits than its factorization.

22404100431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17630.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 22404100431 its reverse (13400140422), we get a palindrome (35804240853).

The spelling of 22404100431 in words is "twenty-two billion, four hundred four million, one hundred thousand, four hundred thirty-one".