22043431144 has 32 divisors (see below), whose sum is σ = 48759667200. Its totient is φ = 9142436160.

The previous prime is 22043431129. The next prime is 22043431147. The reversal of 22043431144 is 44113434022.

It is a super-4 number, since 4×22043431144⁴ (a number of 42 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (22043431147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6347179 + ... + 6350650.

It is an arithmetic number, because the mean of its divisors is an integer number (1523739600).

Almost surely, 2^22043431144 is an apocalyptic number.

It is an amenable number.

22043431144 is an abundant number, since it is smaller than the sum of its proper divisors (26716236056).

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

22043431144 is a wasteful number, since it uses less digits than its factorization.

22043431144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12697873 (or 12697869 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 22043431144 its reverse (44113434022), we get a palindrome (66156865166).

The spelling of 22043431144 in words is "twenty-two billion, forty-three million, four hundred thirty-one thousand, one hundred forty-four".