305804 has 12 divisors (see below), whose sum is σ = 541800. Its totient is φ = 151008.

The previous prime is 305803. The next prime is 305821. The reversal of 305804 is 408503.

305804 = 192² + 193² + ... + 199².

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 305804.

It is not an unprimeable number, because it can be changed into a prime (305803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74 + ... + 785.

It is an arithmetic number, because the mean of its divisors is an integer number (45150).

2³⁰⁵⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

305804 is a deficient number, since it is larger than the sum of its proper divisors (235996).

305804 is a wasteful number, since it uses less digits than its factorization.

305804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952 (or 950 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 305804 is about 552.9954791859. The cubic root of 305804 is about 67.3722503734.

The spelling of 305804 in words is "three hundred five thousand, eight hundred four".