2022400404 has 36 divisors (see below), whose sum is σ = 5128334484. Its totient is φ = 672003072.

The previous prime is 2022400403. The next prime is 2022400409. The reversal of 2022400404 is 4040042202.

2022400404 is a `hidden beast` number, since 20 + 2 + 240 + 0 + 404 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 508412304 + 1513988100 = 22548^2 + 38910^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022400403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77197 + ... + 100020.

Almost surely, 2^2022400404 is an apocalyptic number.

It is an amenable number.

2022400404 is an abundant number, since it is smaller than the sum of its proper divisors (3105934080).

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

2022400404 is a wasteful number, since it uses less digits than its factorization.

2022400404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177544 (or 177539 counting only the distinct ones).

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

The square root of 2022400404 is about 44971.1063239498. The cubic root of 2022400404 is about 1264.6073873114.

Adding to 2022400404 its reverse (4040042202), we get a palindrome (6062442606).

The spelling of 2022400404 in words is "two billion, twenty-two million, four hundred thousand, four hundred four".