804645204 has 24 divisors (see below), whose sum is σ = 2048188128. Its totient is φ = 243831840.

The previous prime is 804645169. The next prime is 804645209. The reversal of 804645204 is 402546408.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804645209) by changing a digit.

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, 3047767 + ... + 3048030.

It is an arithmetic number, because the mean of its divisors is an integer number (85341172).

Almost surely, 2^804645204 is an apocalyptic number.

It is an amenable number.

804645204 is an abundant number, since it is smaller than the sum of its proper divisors (1243542924).

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

804645204 is a wasteful number, since it uses less digits than its factorization.

804645204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6095815 (or 6095813 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 804645204 is about 28366.2687712008. The cubic root of 804645204 is about 930.1110608492. Note that the first 3 decimals are identical.

The spelling of 804645204 in words is "eight hundred four million, six hundred forty-five thousand, two hundred four".