2182209642 has 12 divisors (see below), whose sum is σ = 4728120930. Its totient is φ = 727403208.

The previous prime is 2182209593. The next prime is 2182209647. The reversal of 2182209642 is 2469022812.

2182209642 is a `hidden beast` number, since 2 + 1 + 8 + 2 + 2 + 0 + 9 + 642 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1561751361 + 620458281 = 39519^2 + 24909^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2182209597 and 2182209606.

It is not an unprimeable number, because it can be changed into a prime (2182209647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 60616917 + ... + 60616952.

Almost surely, 2^2182209642 is an apocalyptic number.

2182209642 is an abundant number, since it is smaller than the sum of its proper divisors (2545911288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2182209642 is a wasteful number, since it uses less digits than its factorization.

2182209642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121233877 (or 121233874 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 2182209642 is about 46714.1267926523. The cubic root of 2182209642 is about 1297.0761986982.

The spelling of 2182209642 in words is "two billion, one hundred eighty-two million, two hundred nine thousand, six hundred forty-two".