22002040404 has 18 divisors (see below), whose sum is σ = 55616268890. Its totient is φ = 7334013456.

The previous prime is 22002040381. The next prime is 22002040483. The reversal of 22002040404 is 40404020022.

22002040404 is a `hidden beast` number, since 2 + 200 + 20 + 40 + 404 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14580562500 + 7421477904 = 120750^2 + 86148^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 305583859 + ... + 305583930.

Almost surely, 2^22002040404 is an apocalyptic number.

It is an amenable number.

22002040404 is an abundant number, since it is smaller than the sum of its proper divisors (33614228486).

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

22002040404 is a wasteful number, since it uses less digits than its factorization.

22002040404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611167799 (or 611167794 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 22002040404 its reverse (40404020022), we get a palindrome (62406060426).

The spelling of 22002040404 in words is "twenty-two billion, two million, forty thousand, four hundred four".