2305665988 has 6 divisors (see below), whose sum is σ = 4034915486. Its totient is φ = 1152832992.

The previous prime is 2305665937. The next prime is 2305666003. The reversal of 2305665988 is 8895665032.

2305665988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1224440064 + 1081225924 = 34992^2 + 32882^2 .

It is a super-2 number, since 2×2305665988² = 10632191296440032288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 288208245 + ... + 288208252.

Almost surely, 2^2305665988 is an apocalyptic number.

It is an amenable number.

2305665988 is a deficient number, since it is larger than the sum of its proper divisors (1729249498).

2305665988 is a wasteful number, since it uses less digits than its factorization.

2305665988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576416501 (or 576416499 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 52.

The square root of 2305665988 is about 48017.3509056882. The cubic root of 2305665988 is about 1321.0891660981.

The spelling of 2305665988 in words is "two billion, three hundred five million, six hundred sixty-five thousand, nine hundred eighty-eight".