4431982 has 4 divisors (see below), whose sum is σ = 6647976. Its totient is φ = 2215990.

The previous prime is 4431961. The next prime is 4431989. The reversal of 4431982 is 2891344.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4431989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1107994 + ... + 1107997.

It is an arithmetic number, because the mean of its divisors is an integer number (1661994).

Almost surely, 2^4431982 is an apocalyptic number.

4431982 is a deficient number, since it is larger than the sum of its proper divisors (2215994).

4431982 is a wasteful number, since it uses less digits than its factorization.

4431982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215993.

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

The square root of 4431982 is about 2105.2273036421. The cubic root of 4431982 is about 164.2603192721.

The spelling of 4431982 in words is "four million, four hundred thirty-one thousand, nine hundred eighty-two".