1982852209 has 16 divisors (see below), whose sum is σ = 2189787264. Its totient is φ = 1783785600.

The previous prime is 1982852197. The next prime is 1982852219. The reversal of 1982852209 is 9022582891.

It is a cyclic number.

It is not a de Polignac number, because 1982852209 - 2⁹ = 1982851697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1982852219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 821214 + ... + 823624.

It is an arithmetic number, because the mean of its divisors is an integer number (136861704).

Almost surely, 2^1982852209 is an apocalyptic number.

It is an amenable number.

1982852209 is a deficient number, since it is larger than the sum of its proper divisors (206935055).

1982852209 is a wasteful number, since it uses less digits than its factorization.

1982852209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4008.

The product of its (nonzero) digits is 207360, while the sum is 46.

The square root of 1982852209 is about 44529.2287043016. The cubic root of 1982852209 is about 1256.3098991298.

The spelling of 1982852209 in words is "one billion, nine hundred eighty-two million, eight hundred fifty-two thousand, two hundred nine".