1800404304 has 40 divisors (see below), whose sum is σ = 4853266752. Its totient is φ = 574041600.

The previous prime is 1800404279. The next prime is 1800404317. The reversal of 1800404304 is 4034040081.

It is a Harshad number since it is a multiple of its sum of digits (24).

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 7 ways as a sum of consecutive naturals, for example, 814297 + ... + 816504.

Almost surely, 2^1800404304 is an apocalyptic number.

It is an amenable number.

1800404304 is an abundant number, since it is smaller than the sum of its proper divisors (3052862448).

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

1800404304 is a wasteful number, since it uses less digits than its factorization.

1800404304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630835 (or 1630829 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1800404304 is about 42431.1713719996. The cubic root of 1800404304 is about 1216.5314685408.

Adding to 1800404304 its reverse (4034040081), we get a palindrome (5834444385).

The spelling of 1800404304 in words is "one billion, eight hundred million, four hundred four thousand, three hundred four".