2000440404 has 18 divisors (see below), whose sum is σ = 5056668890. Its totient is φ = 666813456.

The previous prime is 2000440399. The next prime is 2000440411. The reversal of 2000440404 is 4040440002.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1785231504 + 215208900 = 42252^2 + 14670^2 .

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, 27783859 + ... + 27783930.

Almost surely, 2^2000440404 is an apocalyptic number.

It is an amenable number.

2000440404 is an abundant number, since it is smaller than the sum of its proper divisors (3056228486).

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

2000440404 is a wasteful number, since it uses less digits than its factorization.

2000440404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55567799 (or 55567794 counting only the distinct ones).

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

The square root of 2000440404 is about 44726.2831453721. The cubic root of 2000440404 is about 1260.0135221527.

Adding to 2000440404 its reverse (4040440002), we get a palindrome (6040880406).

The spelling of 2000440404 in words is "two billion, four hundred forty thousand, four hundred four".