22444400424 has 16 divisors (see below), whose sum is σ = 56111001120. Its totient is φ = 7481466800.

The previous prime is 22444400423. The next prime is 22444400491. The reversal of 22444400424 is 42400444422.

It is a super-2 number, since 2×22444400424² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22444400391 and 22444400400.

It is not an unprimeable number, because it can be changed into a prime (22444400423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 467591652 + ... + 467591699.

It is an arithmetic number, because the mean of its divisors is an integer number (3506937570).

Almost surely, 2^22444400424 is an apocalyptic number.

22444400424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22444400424 is an abundant number, since it is smaller than the sum of its proper divisors (33666600696).

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

22444400424 is a wasteful number, since it uses less digits than its factorization.

22444400424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935183360 (or 935183356 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 22444400424 its reverse (42400444422), we get a palindrome (64844844846).

The spelling of 22444400424 in words is "twenty-two billion, four hundred forty-four million, four hundred thousand, four hundred twenty-four".