3984426 has 48 divisors (see below), whose sum is σ = 9477000. Its totient is φ = 1204224.

The previous prime is 3984403. The next prime is 3984439. The reversal of 3984426 is 6244893.

It is a happy number.

3984426 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3861225 + 123201 = 1965^2 + 351^2 .

It is a Curzon number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 8650 + ... + 9098.

Almost surely, 2^3984426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3984426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4738500).

3984426 is an abundant number, since it is smaller than the sum of its proper divisors (5492574).

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

3984426 is a wasteful number, since it uses less digits than its factorization.

3984426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503 (or 500 counting only the distinct ones).

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

The square root of 3984426 is about 1996.1027027686. The cubic root of 3984426 is about 158.5338190398.

The spelling of 3984426 in words is "three million, nine hundred eighty-four thousand, four hundred twenty-six".