1804442808 has 64 divisors (see below), whose sum is σ = 5170325760. Its totient is φ = 514077696.

The previous prime is 1804442807. The next prime is 1804442813. The reversal of 1804442808 is 8082444081.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1804442807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44091 + ... + 74517.

It is an arithmetic number, because the mean of its divisors is an integer number (80786340).

Almost surely, 2^1804442808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1804442808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2585162880).

1804442808 is an abundant number, since it is smaller than the sum of its proper divisors (3365882952).

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

1804442808 is a wasteful number, since it uses less digits than its factorization.

1804442808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30796 (or 30792 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 39.

The square root of 1804442808 is about 42478.7335969424. The cubic root of 1804442808 is about 1217.4403937048.

Adding to 1804442808 its reverse (8082444081), we get a palindrome (9886886889).

The spelling of 1804442808 in words is "one billion, eight hundred four million, four hundred forty-two thousand, eight hundred eight".