1982322812 has 12 divisors (see below), whose sum is σ = 3473628816. Its totient is φ = 989857440.

The previous prime is 1982322809. The next prime is 1982322847. The reversal of 1982322812 is 2182232891.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322568 + ... + 328655.

It is an arithmetic number, because the mean of its divisors is an integer number (289469068).

Almost surely, 2^1982322812 is an apocalyptic number.

It is an amenable number.

1982322812 is a deficient number, since it is larger than the sum of its proper divisors (1491306004).

1982322812 is a wasteful number, since it uses less digits than its factorization.

1982322812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651988 (or 651986 counting only the distinct ones).

The product of its digits is 27648, while the sum is 38.

The square root of 1982322812 is about 44523.2839309950. The cubic root of 1982322812 is about 1256.1980827797.

The spelling of 1982322812 in words is "one billion, nine hundred eighty-two million, three hundred twenty-two thousand, eight hundred twelve".