1982001982 has 16 divisors (see below), whose sum is σ = 3005771904. Its totient is φ = 980100000.

The previous prime is 1982001979. The next prime is 1982001997. The reversal of 1982001982 is 2891002891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195232 + ... + 205132.

It is an arithmetic number, because the mean of its divisors is an integer number (187860744).

Almost surely, 2^1982001982 is an apocalyptic number.

1982001982 is a deficient number, since it is larger than the sum of its proper divisors (1023769922).

1982001982 is a wasteful number, since it uses less digits than its factorization.

1982001982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10995.

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 1982001982 is about 44519.6808389279. The cubic root of 1982001982 is about 1256.1303091267.

Subtracting 1982001982 from its reverse (2891002891), we obtain a palindrome (909000909).

It can be divided in two parts, 198200 and 1982, that multiplied together give a square (392832400 = 19820²).

The spelling of 1982001982 in words is "one billion, nine hundred eighty-two million, one thousand, nine hundred eighty-two".