22332365440 has 384 divisors, whose sum is σ = 69447067200. Its totient is φ = 6786662400.

The previous prime is 22332365381. The next prime is 22332365459. The reversal of 22332365440 is 4456323322.

It is a super-2 number, since 2×22332365440² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22332365396 and 22332365405.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14142571 + ... + 14144149.

Almost surely, 2^22332365440 is an apocalyptic number.

22332365440 is a gapful number since it is divisible by the number (20) 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 22332365440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34723533600).

22332365440 is an abundant number, since it is smaller than the sum of its proper divisors (47114701760).

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

22332365440 is a wasteful number, since it uses less digits than its factorization.

22332365440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664 (or 1645 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 34.

Adding to 22332365440 its reverse (4456323322), we get a palindrome (26788688762).

The spelling of 22332365440 in words is "twenty-two billion, three hundred thirty-two million, three hundred sixty-five thousand, four hundred forty".