904018 has 4 divisors (see below), whose sum is σ = 1356030. Its totient is φ = 452008.

The previous prime is 903979. The next prime is 904019. The reversal of 904018 is 810409.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 660969 + 243049 = 813^2 + 493^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 15.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 904018.

It is not an unprimeable number, because it can be changed into a prime (904019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 226003 + ... + 226006.

2⁹⁰⁴⁰¹⁸ is an apocalyptic number.

904018 is a deficient number, since it is larger than the sum of its proper divisors (452012).

904018 is a wasteful number, since it uses less digits than its factorization.

904018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452011.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 904018 is about 950.7986116944. The cubic root of 904018 is about 96.6924042975.

It can be divided in two parts, 90401 and 8, that added together give a palindrome (90409).

The spelling of 904018 in words is "nine hundred four thousand, eighteen".