3968442 has 12 divisors (see below), whose sum is σ = 8598330. Its totient is φ = 1322808.

The previous prime is 3968417. The next prime is 3968453. The reversal of 3968442 is 2448693.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3956121 + 12321 = 1989^2 + 111^2 .

It is a d-powerful number, because it can be written as 3¹³ + 9⁴ + 6 + 8⁷ + 4³ + 4⁹ + 2¹³ .

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 3968397 and 3968406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 110217 + ... + 110252.

Almost surely, 2^3968442 is an apocalyptic number.

3968442 is an abundant number, since it is smaller than the sum of its proper divisors (4629888).

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

3968442 is a wasteful number, since it uses less digits than its factorization.

3968442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220477 (or 220474 counting only the distinct ones).

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

The square root of 3968442 is about 1992.0948772586. The cubic root of 3968442 is about 158.3215424892.

The spelling of 3968442 in words is "three million, nine hundred sixty-eight thousand, four hundred forty-two".