2308003668 has 18 divisors (see below), whose sum is σ = 5834120474. Its totient is φ = 769334544.

The previous prime is 2308003651. The next prime is 2308003669. The reversal of 2308003668 is 8663008032.

It can be written as a sum of positive squares in only one way, i.e., 1305521424 + 1002482244 = 36132^2 + 31662^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 64111213 = 2308003668 / (2 + 3 + 0 + 8 + 0 + 0 + 3 + 6 + 6 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2308003669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32055571 + ... + 32055642.

Almost surely, 2^2308003668 is an apocalyptic number.

It is an amenable number.

2308003668 is an abundant number, since it is smaller than the sum of its proper divisors (3526116806).

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

2308003668 is a wasteful number, since it uses less digits than its factorization.

2308003668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64111223 (or 64111218 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 2308003668 is about 48041.6867730516. The cubic root of 2308003668 is about 1321.5354927566.

The spelling of 2308003668 in words is "two billion, three hundred eight million, three thousand, six hundred sixty-eight".