22004040404 has 24 divisors (see below), whose sum is σ = 38787658728. Its totient is φ = 10922065920.

The previous prime is 22004040379. The next prime is 22004040427. The reversal of 22004040404 is 40404040022.

It can be written as a sum of positive squares in 4 ways, for example, as 2730271504 + 19273768900 = 52252^2 + 138830^2 .

22004040404 is a modest number, since divided by 40404 gives 22004 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391412 + ... + 444084.

It is an arithmetic number, because the mean of its divisors is an integer number (1616152447).

Almost surely, 2^22004040404 is an apocalyptic number.

It is an amenable number.

22004040404 is a deficient number, since it is larger than the sum of its proper divisors (16783618324).

22004040404 is a wasteful number, since it uses less digits than its factorization.

22004040404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53435 (or 53433 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 22004040404 its reverse (40404040022), we get a palindrome (62408080426).

The spelling of 22004040404 in words is "twenty-two billion, four million, forty thousand, four hundred four".