3200256 has 72 divisors (see below), whose sum is σ = 9484160. Its totient is φ = 1064448.

The previous prime is 3200251. The next prime is 3200257. The reversal of 3200256 is 6520023.

It is a tau number, because it is divible by the number of its divisors (72).

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3200251) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6681 + ... + 7143.

Almost surely, 2^3200256 is an apocalyptic number.

3200256 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3200256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4742080).

3200256 is an abundant number, since it is smaller than the sum of its proper divisors (6283904).

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

3200256 is an equidigital number, since it uses as much as digits as its factorization.

3200256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 3200256 is about 1788.9259347441. The cubic root of 3200256 is about 147.3651894744.

Adding to 3200256 its reverse (6520023), we get a palindrome (9720279).

The spelling of 3200256 in words is "three million, two hundred thousand, two hundred fifty-six".