22444812936 has 960 divisors, whose sum is σ = 86729702400. Its totient is φ = 5284071936.

The previous prime is 22444812883. The next prime is 22444812937. The reversal of 22444812936 is 63921844422.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 22444812891 and 22444812900.

It is not an unprimeable number, because it can be changed into a prime (22444812937) by changing a digit.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 334997175 + ... + 334997241.

It is an arithmetic number, because the mean of its divisors is an integer number (90343440).

Almost surely, 2^22444812936 is an apocalyptic number.

22444812936 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22444812936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43364851200).

22444812936 is an abundant number, since it is smaller than the sum of its proper divisors (64284889464).

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

22444812936 is a wasteful number, since it uses less digits than its factorization.

22444812936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 134 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The spelling of 22444812936 in words is "twenty-two billion, four hundred forty-four million, eight hundred twelve thousand, nine hundred thirty-six".