3986442 has 16 divisors (see below), whose sum is σ = 8858880. Its totient is φ = 1328796.

The previous prime is 3986441. The next prime is 3986459. The reversal of 3986442 is 2446893.

It is a happy number.

3986442 is a `hidden beast` number, since 3 + 9 + 8 + 644 + 2 = 666.

It is an Ulam number.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 3986397 and 3986406.

It is not an unprimeable number, because it can be changed into a prime (3986441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36858 + ... + 36965.

It is an arithmetic number, because the mean of its divisors is an integer number (553680).

Almost surely, 2^3986442 is an apocalyptic number.

3986442 is an abundant number, since it is smaller than the sum of its proper divisors (4872438).

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

3986442 is a wasteful number, since it uses less digits than its factorization.

3986442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73834 (or 73828 counting only the distinct ones).

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

The square root of 3986442 is about 1996.6076229445. The cubic root of 3986442 is about 158.5605523167.

The spelling of 3986442 in words is "three million, nine hundred eighty-six thousand, four hundred forty-two".