3944286 has 36 divisors (see below), whose sum is σ = 9034272. Its totient is φ = 1243512.

The previous prime is 3944257. The next prime is 3944309. The reversal of 3944286 is 6824493.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3944286.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6195 + ... + 6801.

It is an arithmetic number, because the mean of its divisors is an integer number (250952).

Almost surely, 2^3944286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3944286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4517136).

3944286 is an abundant number, since it is smaller than the sum of its proper divisors (5089986).

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

3944286 is a wasteful number, since it uses less digits than its factorization.

3944286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653 (or 631 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 3944286 is about 1986.0226584810. The cubic root of 3944286 is about 157.9996528327. Note that the first 3 decimals are identical.

The spelling of 3944286 in words is "three million, nine hundred forty-four thousand, two hundred eighty-six".