1208109968 has 20 divisors (see below), whose sum is σ = 2520768348. Its totient is φ = 557589120.

The previous prime is 1208109967. The next prime is 1208109989. The reversal of 1208109968 is 8699018021.

It can be written as a sum of positive squares in 2 ways, for example, as 831284224 + 376825744 = 28832^2 + 19412^2 .

It is a super-2 number, since 2×1208109968² = 2919059389561922048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1208109967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2903903 + ... + 2904318.

Almost surely, 2^1208109968 is an apocalyptic number.

It is an amenable number.

1208109968 is an abundant number, since it is smaller than the sum of its proper divisors (1312658380).

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

1208109968 is a wasteful number, since it uses less digits than its factorization.

1208109968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5808242 (or 5808236 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 44.

The square root of 1208109968 is about 34757.8763447941. The cubic root of 1208109968 is about 1065.0471205466.

The spelling of 1208109968 in words is "one billion, two hundred eight million, one hundred nine thousand, nine hundred sixty-eight".