604256 has 24 divisors (see below), whose sum is σ = 1242864. Its totient is φ = 288640.

The previous prime is 604249. The next prime is 604259. The reversal of 604256 is 652406.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (604259) by changing a digit.

604256 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 (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326 + ... + 1146.

It is an arithmetic number, because the mean of its divisors is an integer number (51786).

2⁶⁰⁴²⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 604256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (621432).

604256 is an abundant number, since it is smaller than the sum of its proper divisors (638608).

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

604256 is a wasteful number, since it uses less digits than its factorization.

604256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854 (or 846 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 604256 is about 777.3390508652. The cubic root of 604256 is about 84.5422218183.

The spelling of 604256 in words is "six hundred four thousand, two hundred fifty-six".