22431423004 has 24 divisors (see below), whose sum is σ = 39441402000. Its totient is φ = 11162507520.

The previous prime is 22431422999. The next prime is 22431423017. The reversal of 22431423004 is 40032413422.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22431423004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1872867 + ... + 1884805.

It is an arithmetic number, because the mean of its divisors is an integer number (1643391750).

Almost surely, 2^22431423004 is an apocalyptic number.

It is an amenable number.

22431423004 is a deficient number, since it is larger than the sum of its proper divisors (17009978996).

22431423004 is a wasteful number, since it uses less digits than its factorization.

22431423004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14133 (or 14131 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 22431423004 its reverse (40032413422), we get a palindrome (62463836426).

The spelling of 22431423004 in words is "twenty-two billion, four hundred thirty-one million, four hundred twenty-three thousand, four".