22431043434444 has 24 divisors (see below), whose sum is σ = 52347394837248. Its totient is φ = 7475829693840.

The previous prime is 22431043434431. The next prime is 22431043434487. The reversal of 22431043434444 is 44443434013422.

It is a junction number, because it is equal to n+sod(n) for n = 22431043434396 and 22431043434405.

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, 148019152 + ... + 148170615.

It is an arithmetic number, because the mean of its divisors is an integer number (2181141451552).

Almost surely, 2^{22431043434444} is an apocalyptic number.

It is an amenable number.

22431043434444 is an abundant number, since it is smaller than the sum of its proper divisors (29916351402804).

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

22431043434444 is a wasteful number, since it uses less digits than its factorization.

22431043434444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296196085 (or 296196083 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 42.

Adding to 22431043434444 its reverse (44443434013422), we get a palindrome (66874477447866).

The spelling of 22431043434444 in words is "twenty-two trillion, four hundred thirty-one billion, forty-three million, four hundred thirty-four thousand, four hundred forty-four".