604090 has 16 divisors (see below), whose sum is σ = 1096488. Its totient is φ = 239616.

The previous prime is 604073. The next prime is 604171. The reversal of 604090 is 90406.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 203401 + 400689 = 451^2 + 633^2 .

It is an unprimeable number.

604090 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1774 + ... + 2086.

2⁶⁰⁴⁰⁹⁰ is an apocalyptic number.

604090 is a deficient number, since it is larger than the sum of its proper divisors (492398).

604090 is a wasteful number, since it uses less digits than its factorization.

604090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 604090 is about 777.2322690162. The cubic root of 604090 is about 84.5344793526.

Adding to 604090 its reverse (90406), we get a palindrome (694496).

The spelling of 604090 in words is "six hundred four thousand, ninety".