3992256 has 84 divisors (see below), whose sum is σ = 11887200. Its totient is φ = 1279488.

The previous prime is 3992251. The next prime is 3992257. The reversal of 3992256 is 6522993.

3992256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 3992256.

It is not an unprimeable number, because it can be changed into a prime (3992251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16585 + ... + 16823.

Almost surely, 2^3992256 is an apocalyptic number.

3992256 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 3992256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5943600).

3992256 is an abundant number, since it is smaller than the sum of its proper divisors (7894944).

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

3992256 is a wasteful number, since it uses less digits than its factorization.

3992256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286 (or 273 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 3992256 is about 1998.0630620679. The cubic root of 3992256 is about 158.6375987363.

The spelling of 3992256 in words is "three million, nine hundred ninety-two thousand, two hundred fifty-six".