1068215908 has 6 divisors (see below), whose sum is σ = 1869377846. Its totient is φ = 534107952.

The previous prime is 1068215903. The next prime is 1068215909. The reversal of 1068215908 is 8095128601.

It can be written as a sum of positive squares in only one way, i.e., 1012385124 + 55830784 = 31818^2 + 7472^2 .

It is a super-2 number, since 2×1068215908² = 2282170452208528928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1068215903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 133526985 + ... + 133526992.

Almost surely, 2^1068215908 is an apocalyptic number.

It is an amenable number.

1068215908 is a deficient number, since it is larger than the sum of its proper divisors (801161938).

1068215908 is a wasteful number, since it uses less digits than its factorization.

1068215908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267053981 (or 267053979 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 40.

The square root of 1068215908 is about 32683.5724485559. The cubic root of 1068215908 is about 1022.2403365008.

The spelling of 1068215908 in words is "one billion, sixty-eight million, two hundred fifteen thousand, nine hundred eight".