904530 has 32 divisors (see below), whose sum is σ = 2369088. Its totient is φ = 219200.

The previous prime is 904523. The next prime is 904531. The reversal of 904530 is 35409.

It is a junction number, because it is equal to n+sod(n) for n = 904497 and 904506.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 904530.

It is not an unprimeable number, because it can be changed into a prime (904531) by changing a digit.

904530 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 in 15 ways as a sum of consecutive naturals, for example, 1041 + ... + 1700.

It is an arithmetic number, because the mean of its divisors is an integer number (74034).

2⁹⁰⁴⁵³⁰ is an apocalyptic number.

904530 is an abundant number, since it is smaller than the sum of its proper divisors (1464558).

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

904530 is a wasteful number, since it uses less digits than its factorization.

904530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2762.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 904530 is about 951.0678209255. The cubic root of 904530 is about 96.7106551021.

Adding to 904530 its reverse (35409), we get a palindrome (939939).

The spelling of 904530 in words is "nine hundred four thousand, five hundred thirty".