1982340556 has 48 divisors (see below), whose sum is σ = 4277157696. Its totient is φ = 784502784.

The previous prime is 1982340517. The next prime is 1982340557. The reversal of 1982340556 is 6550432891.

It is not an unprimeable number, because it can be changed into a prime (1982340557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14061 + ... + 64516.

It is an arithmetic number, because the mean of its divisors is an integer number (89107452).

Almost surely, 2^1982340556 is an apocalyptic number.

It is an amenable number.

1982340556 is an abundant number, since it is smaller than the sum of its proper divisors (2294817140).

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

1982340556 is a wasteful number, since it uses less digits than its factorization.

1982340556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78658 (or 78656 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 1982340556 is about 44523.4831970725. The cubic root of 1982340556 is about 1256.2018308932.

The spelling of 1982340556 in words is "one billion, nine hundred eighty-two million, three hundred forty thousand, five hundred fifty-six".