30309868 has 6 divisors (see below), whose sum is σ = 53042276. Its totient is φ = 15154932.

The previous prime is 30309859. The next prime is 30309887. The reversal of 30309868 is 86890303.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3788730 + ... + 3788737.

Almost surely, 2^30309868 is an apocalyptic number.

It is an amenable number.

30309868 is a deficient number, since it is larger than the sum of its proper divisors (22732408).

30309868 is a wasteful number, since it uses less digits than its factorization.

30309868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7577471 (or 7577469 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 30309868 is about 5505.4398552704. The cubic root of 30309868 is about 311.7894014907.

The spelling of 30309868 in words is "thirty million, three hundred nine thousand, eight hundred sixty-eight".