1982345 has 8 divisors (see below), whose sum is σ = 2391360. Its totient is φ = 1577520.

The previous prime is 1982293. The next prime is 1982371. The reversal of 1982345 is 5432891.

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

It is not a de Polignac number, because 1982345 - 2¹⁶ = 1916809 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116 + ... + 1994.

It is an arithmetic number, because the mean of its divisors is an integer number (298920).

2^1982345 is an apocalyptic number.

It is an amenable number.

1982345 is a deficient number, since it is larger than the sum of its proper divisors (409015).

1982345 is a wasteful number, since it uses less digits than its factorization.

1982345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2095.

The product of its digits is 8640, while the sum is 32.

The square root of 1982345 is about 1407.9577408431. The cubic root of 1982345 is about 125.6202769608.

The spelling of 1982345 in words is "one million, nine hundred eighty-two thousand, three hundred forty-five".