2209385768 has 16 divisors (see below), whose sum is σ = 4166546580. Its totient is φ = 1098306688.

The previous prime is 2209385753. The next prime is 2209385771. The reversal of 2209385768 is 8675839022.

It can be written as a sum of positive squares in 2 ways, for example, as 1779321124 + 430064644 = 42182^2 + 20738^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 796805 + ... + 799572.

Almost surely, 2^2209385768 is an apocalyptic number.

It is an amenable number.

2209385768 is a deficient number, since it is larger than the sum of its proper divisors (1957160812).

2209385768 is a wasteful number, since it uses less digits than its factorization.

2209385768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596556 (or 1596552 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 2209385768 is about 47004.1037357378. The cubic root of 2209385768 is about 1302.4383758113.

The spelling of 2209385768 in words is "two billion, two hundred nine million, three hundred eighty-five thousand, seven hundred sixty-eight".