22040440404 has 12 divisors (see below), whose sum is σ = 51427694304. Its totient is φ = 7346813464.

The previous prime is 22040440379. The next prime is 22040440421. The reversal of 22040440404 is 40404404022.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 918351672 + ... + 918351695.

It is an arithmetic number, because the mean of its divisors is an integer number (4285641192).

Almost surely, 2^22040440404 is an apocalyptic number.

It is an amenable number.

22040440404 is an abundant number, since it is smaller than the sum of its proper divisors (29387253900).

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

22040440404 is a wasteful number, since it uses less digits than its factorization.

22040440404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836703374 (or 1836703372 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 22040440404 its reverse (40404404022), we get a palindrome (62444844426).

The spelling of 22040440404 in words is "twenty-two billion, forty million, four hundred forty thousand, four hundred four".