22340144424 has 64 divisors (see below), whose sum is σ = 60380792640. Its totient is φ = 6847119360.

The previous prime is 22340144317. The next prime is 22340144429. The reversal of 22340144424 is 42444104322.

It is a junction number, because it is equal to n+sod(n) for n = 22340144391 and 22340144400.

It is not an unprimeable number, because it can be changed into a prime (22340144429) 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, 59122 + ... + 219489.

It is an arithmetic number, because the mean of its divisors is an integer number (943449885).

Almost surely, 2^22340144424 is an apocalyptic number.

22340144424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22340144424 is an abundant number, since it is smaller than the sum of its proper divisors (38040648216).

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

22340144424 is a wasteful number, since it uses less digits than its factorization.

22340144424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278890 (or 278886 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 22340144424 its reverse (42444104322), we get a palindrome (64784248746).

The spelling of 22340144424 in words is "twenty-two billion, three hundred forty million, one hundred forty-four thousand, four hundred twenty-four".