1982325218 has 16 divisors (see below), whose sum is σ = 3089475000. Its totient is φ = 952799232.

The previous prime is 1982325211. The next prime is 1982325229. The reversal of 1982325218 is 8125232891.

It can be written as a sum of positive squares in 4 ways, for example, as 1912050529 + 70274689 = 43727^2 + 8383^2 .

It is a super-2 number, since 2×1982325218² = 7859226539837495048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1982325211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61343 + ... + 87906.

Almost surely, 2^1982325218 is an apocalyptic number.

1982325218 is a deficient number, since it is larger than the sum of its proper divisors (1107149782).

1982325218 is a wasteful number, since it uses less digits than its factorization.

1982325218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149509.

The product of its digits is 69120, while the sum is 41.

The square root of 1982325218 is about 44523.3109505571. The cubic root of 1982325218 is about 1256.1985910070.

The spelling of 1982325218 in words is "one billion, nine hundred eighty-two million, three hundred twenty-five thousand, two hundred eighteen".