2166382 has 4 divisors (see below), whose sum is σ = 3249576. Its totient is φ = 1083190.

The previous prime is 2166319. The next prime is 2166403. The reversal of 2166382 is 2836612.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2166382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 541594 + ... + 541597.

It is an arithmetic number, because the mean of its divisors is an integer number (812394).

2^2166382 is an apocalyptic number.

2166382 is a deficient number, since it is larger than the sum of its proper divisors (1083194).

2166382 is a wasteful number, since it uses less digits than its factorization.

2166382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083193.

The product of its digits is 3456, while the sum is 28.

The square root of 2166382 is about 1471.8634447529. The cubic root of 2166382 is about 129.3932673530.

The spelling of 2166382 in words is "two million, one hundred sixty-six thousand, three hundred eighty-two".