3981442 has 16 divisors (see below), whose sum is σ = 6128640. Its totient is φ = 1939392.

The previous prime is 3981421. The next prime is 3981449. The reversal of 3981442 is 2441893.

It is not an unprimeable number, because it can be changed into a prime (3981449) 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, 17743 + ... + 17965.

It is an arithmetic number, because the mean of its divisors is an integer number (383040).

Almost surely, 2^3981442 is an apocalyptic number.

3981442 is a deficient number, since it is larger than the sum of its proper divisors (2147198).

3981442 is a wasteful number, since it uses less digits than its factorization.

3981442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417.

The product of its digits is 6912, while the sum is 31.

The square root of 3981442 is about 1995.3551062405. The cubic root of 3981442 is about 158.4942329898.

The spelling of 3981442 in words is "three million, nine hundred eighty-one thousand, four hundred forty-two".