604820 has 12 divisors (see below), whose sum is σ = 1270164. Its totient is φ = 241920.

The previous prime is 604819. The next prime is 604823. The reversal of 604820 is 28406.

It can be written as a sum of positive squares in 2 ways, for example, as 150544 + 454276 = 388^2 + 674^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 30241 = 604820 / (6 + 0 + 4 + 8 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 604792 and 604801.

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 604820.

It is not an unprimeable number, because it can be changed into a prime (604823) 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, 15101 + ... + 15140.

It is an arithmetic number, because the mean of its divisors is an integer number (105847).

2⁶⁰⁴⁸²⁰ is an apocalyptic number.

It is an amenable number.

604820 is an abundant number, since it is smaller than the sum of its proper divisors (665344).

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

604820 is a wasteful number, since it uses less digits than its factorization.

604820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30250 (or 30248 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 604820 is about 777.7017423151. The cubic root of 604820 is about 84.5685169569.

The spelling of 604820 in words is "six hundred four thousand, eight hundred twenty".