2209662242 has 18 divisors (see below), whose sum is σ = 3397762737. Its totient is φ = 1077741336.

The previous prime is 2209662181. The next prime is 2209662269. The reversal of 2209662242 is 2422669022.

It can be written as a sum of positive squares in 2 ways, for example, as 1644221401 + 565440841 = 40549^2 + 23779^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=33239.

It is a Duffinian number.

It is an unprimeable number.

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, 2858168 + ... + 2858940.

Almost surely, 2^2209662242 is an apocalyptic number.

2209662242 is a deficient number, since it is larger than the sum of its proper divisors (1188100495).

2209662242 is an frugal number, since it uses more digits than its factorization.

2209662242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634 (or 818 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 2209662242 is about 47007.0445997193. The cubic root of 2209662242 is about 1302.4927009144.

Multiplying 2209662242 by its product of nonzero digits (41472), we get a square (91639112500224 = 9572832²).

The spelling of 2209662242 in words is "two billion, two hundred nine million, six hundred sixty-two thousand, two hundred forty-two".