1982845 has 8 divisors (see below), whose sum is σ = 2391264. Its totient is φ = 1578384.

The previous prime is 1982843. The next prime is 1982857. The reversal of 1982845 is 5482891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1982845 - 2¹ = 1982843 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982843) 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, 262 + ... + 2008.

It is an arithmetic number, because the mean of its divisors is an integer number (298908).

2^1982845 is an apocalyptic number.

It is an amenable number.

1982845 is a deficient number, since it is larger than the sum of its proper divisors (408419).

1982845 is a wasteful number, since it uses less digits than its factorization.

1982845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979.

The product of its digits is 23040, while the sum is 37.

The square root of 1982845 is about 1408.1352917955. The cubic root of 1982845 is about 125.6308376618.

The spelling of 1982845 in words is "one million, nine hundred eighty-two thousand, eight hundred forty-five".