3982842 has 24 divisors (see below), whose sum is σ = 8666580. Its totient is φ = 1321920.

The previous prime is 3982819. The next prime is 3982877. The reversal of 3982842 is 2482893.

It can be written as a sum of positive squares in 2 ways, for example, as 3837681 + 145161 = 1959^2 + 381^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3982797 and 3982806.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7092 + ... + 7632.

Almost surely, 2^3982842 is an apocalyptic number.

3982842 is an abundant number, since it is smaller than the sum of its proper divisors (4683738).

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

3982842 is a wasteful number, since it uses less digits than its factorization.

3982842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958 (or 955 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 3982842 is about 1995.7058901552. The cubic root of 3982842 is about 158.5128079955.

It can be divided in two parts, 398 and 2842, that added together give a triangular number (3240 = T₈₀).

The spelling of 3982842 in words is "three million, nine hundred eighty-two thousand, eight hundred forty-two".