4004185822 has 24 divisors (see below), whose sum is σ = 7524351576. Its totient is φ = 1584073008.

The previous prime is 4004185819. The next prime is 4004185883. The reversal of 4004185822 is 2285814004.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1570228 + ... + 1572775.

It is an arithmetic number, because the mean of its divisors is an integer number (313514649).

Almost surely, 2^4004185822 is an apocalyptic number.

4004185822 is a deficient number, since it is larger than the sum of its proper divisors (3520165754).

4004185822 is a wasteful number, since it uses less digits than its factorization.

4004185822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3143032 (or 3143025 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 34.

The square root of 4004185822 is about 63278.6363791130. The cubic root of 4004185822 is about 1587.9545737883.

Adding to 4004185822 its reverse (2285814004), we get a palindrome (6289999826).

The spelling of 4004185822 in words is "four billion, four million, one hundred eighty-five thousand, eight hundred twenty-two".