2004256 has 12 divisors (see below), whose sum is σ = 3945942. Its totient is φ = 1002112.

The previous prime is 2004251. The next prime is 2004269. The reversal of 2004256 is 6524002.

It can be written as a sum of positive squares in only one way, i.e., 1904400 + 99856 = 1380^2 + 316^2 .

It is a super-2 number, since 2×2004256² = 8034084227072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2004251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31285 + ... + 31348.

2^2004256 is an apocalyptic number.

It is an amenable number.

2004256 is a deficient number, since it is larger than the sum of its proper divisors (1941686).

2004256 is an equidigital number, since it uses as much as digits as its factorization.

2004256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62643 (or 62635 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 2004256 is about 1415.7174859413. The cubic root of 2004256 is about 126.0814120707.

Adding to 2004256 its reverse (6524002), we get a palindrome (8528258).

The spelling of 2004256 in words is "two million, four thousand, two hundred fifty-six".