23221432444 has 12 divisors (see below), whose sum is σ = 46442864944. Its totient is φ = 9952042464.

The previous prime is 23221432439. The next prime is 23221432453. The reversal of 23221432444 is 44423412232.

23221432444 is an admirable number.

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, 414668409 + ... + 414668464.

Almost surely, 2^23221432444 is an apocalyptic number.

It is an amenable number.

23221432444 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

23221432444 is a wasteful number, since it uses less digits than its factorization.

23221432444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829336884 (or 829336882 counting only the distinct ones).

The product of its digits is 36864, while the sum is 31.

Adding to 23221432444 its reverse (44423412232), we get a palindrome (67644844676).

The spelling of 23221432444 in words is "twenty-three billion, two hundred twenty-one million, four hundred thirty-two thousand, four hundred forty-four".