2685042730 has 16 divisors (see below), whose sum is σ = 5117375880. Its totient is φ = 1010839552.

The previous prime is 2685042641. The next prime is 2685042733. The reversal of 2685042730 is 372405862.

It can be written as a sum of positive squares in 4 ways, for example, as 1868054841 + 816987889 = 43221^2 + 28583^2 .

It is a zygodrome in base 4.

It is a self number, because there is not a number n which added to its sum of digits gives 2685042730.

It is not an unprimeable number, because it can be changed into a prime (2685042733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7897015 + ... + 7897354.

Almost surely, 2^2685042730 is an apocalyptic number.

2685042730 is a deficient number, since it is larger than the sum of its proper divisors (2432333150).

2685042730 is a wasteful number, since it uses less digits than its factorization.

2685042730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15794393.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 2685042730 is about 51817.3979470216. The cubic root of 2685042730 is about 1389.9005725682.

The spelling of 2685042730 in words is "two billion, six hundred eighty-five million, forty-two thousand, seven hundred thirty".