2371982209 has 9 divisors (see below), whose sum is σ = 2398724419. Its totient is φ = 2345536480.

The previous prime is 2371982201. The next prime is 2371982213. The reversal of 2371982209 is 9022891732.

The square root of 2371982209 is 48703.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 41796225 + 2330185984 = 6465^2 + 48272^2 .

It is not a de Polignac number, because 2371982209 - 2³ = 2371982201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2371982201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5503224 + ... + 5503654.

Almost surely, 2^2371982209 is an apocalyptic number.

2371982209 is the 48703-rd square number.

2371982209 is the 24352-nd centered octagonal number.

It is an amenable number.

2371982209 is a deficient number, since it is larger than the sum of its proper divisors (26742210).

2371982209 is an frugal number, since it uses more digits than its factorization.

2371982209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088 (or 544 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 43.

The cubic root of 2371982209 is about 1333.6354845997.

The spelling of 2371982209 in words is "two billion, three hundred seventy-one million, nine hundred eighty-two thousand, two hundred nine".