22236413724 has 144 divisors (see below), whose sum is σ = 65642304000. Its totient is φ = 6215730048.

The previous prime is 22236413699. The next prime is 22236413741. The reversal of 22236413724 is 42731463222.

22236413724 is a `hidden beast` number, since 2 + 2 + 2 + 3 + 641 + 3 + 7 + 2 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2511297 + ... + 2520135.

Almost surely, 2^22236413724 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22236413724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32821152000).

22236413724 is an abundant number, since it is smaller than the sum of its proper divisors (43405890276).

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

22236413724 is a wasteful number, since it uses less digits than its factorization.

22236413724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9072 (or 9067 counting only the distinct ones).

The product of its digits is 96768, while the sum is 36.

Adding to 22236413724 its reverse (42731463222), we get a palindrome (64967876946).

The spelling of 22236413724 in words is "twenty-two billion, two hundred thirty-six million, four hundred thirteen thousand, seven hundred twenty-four".