22202064440 has 64 divisors (see below), whose sum is σ = 51321029760. Its totient is φ = 8639568000.

The previous prime is 22202064439. The next prime is 22202064463. The reversal of 22202064440 is 4446020222.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 406007 + ... + 457433.

It is an arithmetic number, because the mean of its divisors is an integer number (801891090).

Almost surely, 2^22202064440 is an apocalyptic number.

22202064440 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 22202064440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25660514880).

22202064440 is an abundant number, since it is smaller than the sum of its proper divisors (29118965320).

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

22202064440 is a wasteful number, since it uses less digits than its factorization.

22202064440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51732 (or 51728 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 22202064440 its reverse (4446020222), we get a palindrome (26648084662).

The spelling of 22202064440 in words is "twenty-two billion, two hundred two million, sixty-four thousand, four hundred forty".