804018 has 16 divisors (see below), whose sum is σ = 1624896. Its totient is φ = 265200.

The previous prime is 804017. The next prime is 804031. The reversal of 804018 is 810408.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 803985 and 804003.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 804018.

It is not an unprimeable number, because it can be changed into a prime (804017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33 + ... + 1268.

It is an arithmetic number, because the mean of its divisors is an integer number (101556).

2⁸⁰⁴⁰¹⁸ is an apocalyptic number.

804018 is an abundant number, since it is smaller than the sum of its proper divisors (820878).

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

804018 is a wasteful number, since it uses less digits than its factorization.

804018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409.

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 804018 is about 896.6705080463. The cubic root of 804018 is about 92.9869330699.

The spelling of 804018 in words is "eight hundred four thousand, eighteen".