1982084457 has 8 divisors (see below), whose sum is σ = 2642987776. Its totient is φ = 1321285392.

The previous prime is 1982084381. The next prime is 1982084459. The reversal of 1982084457 is 7544802891.

It is a happy number.

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

It is not a de Polignac number, because 1982084457 - 2¹¹ = 1982082409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1982084459) 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, 50088 + ... + 80454.

It is an arithmetic number, because the mean of its divisors is an integer number (330373472).

Almost surely, 2^1982084457 is an apocalyptic number.

It is an amenable number.

1982084457 is a deficient number, since it is larger than the sum of its proper divisors (660903319).

1982084457 is a wasteful number, since it uses less digits than its factorization.

1982084457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52127.

The product of its (nonzero) digits is 645120, while the sum is 48.

The square root of 1982084457 is about 44520.6071050250. The cubic root of 1982084457 is about 1256.1477322358.

The spelling of 1982084457 in words is "one billion, nine hundred eighty-two million, eighty-four thousand, four hundred fifty-seven".