22064884440 has 32 divisors (see below), whose sum is σ = 66194653680. Its totient is φ = 5883969152.

The previous prime is 22064884397. The next prime is 22064884463. The reversal of 22064884440 is 4448846022.

It is a happy number.

It is a super-2 number, since 2×22064884440² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22064884392 and 22064884401.

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 7 ways as a sum of consecutive naturals, for example, 91936899 + ... + 91937138.

Almost surely, 2^22064884440 is an apocalyptic number.

22064884440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22064884440 is an abundant number, since it is smaller than the sum of its proper divisors (44129769240).

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

22064884440 is a wasteful number, since it uses less digits than its factorization.

22064884440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183874051 (or 183874047 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 42.

The spelling of 22064884440 in words is "twenty-two billion, sixty-four million, eight hundred eighty-four thousand, four hundred forty".