3981148 has 24 divisors (see below), whose sum is σ = 7212240. Its totient is φ = 1921920.

The previous prime is 3981137. The next prime is 3981157. The reversal of 3981148 is 8411893.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18763 + ... + 18973.

It is an arithmetic number, because the mean of its divisors is an integer number (300510).

Almost surely, 2^3981148 is an apocalyptic number.

It is an amenable number.

3981148 is a deficient number, since it is larger than the sum of its proper divisors (3231092).

3981148 is a wasteful number, since it uses less digits than its factorization.

3981148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357 (or 355 counting only the distinct ones).

The product of its digits is 6912, while the sum is 34.

The square root of 3981148 is about 1995.2814337832. The cubic root of 3981148 is about 158.4903316854.

The spelling of 3981148 in words is "three million, nine hundred eighty-one thousand, one hundred forty-eight".