2220040404 has 72 divisors (see below), whose sum is σ = 6102526248. Its totient is φ = 677652480.

The previous prime is 2220040397. The next prime is 2220040411. The reversal of 2220040404 is 4040400222.

2220040404 is a `hidden beast` number, since 2 + 220 + 0 + 40 + 404 = 666.

It is an interprime number because it is at equal distance from previous prime (2220040397) and next prime (2220040411).

It can be written as a sum of positive squares in 4 ways, for example, as 1402652304 + 817388100 = 37452^2 + 28590^2 .

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

2220040404 is a modest number, since divided by 40404 gives 2220 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26377 + ... + 71664.

It is an arithmetic number, because the mean of its divisors is an integer number (84757309).

Almost surely, 2^2220040404 is an apocalyptic number.

It is an amenable number.

2220040404 is an abundant number, since it is smaller than the sum of its proper divisors (3882485844).

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

2220040404 is a wasteful number, since it uses less digits than its factorization.

2220040404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98105 (or 98100 counting only the distinct ones).

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

The square root of 2220040404 is about 47117.3047191793. The cubic root of 2220040404 is about 1304.5286640650.

Adding to 2220040404 its reverse (4040400222), we get a palindrome (6260440626).

The spelling of 2220040404 in words is "two billion, two hundred twenty million, forty thousand, four hundred four".