30668782 has 16 divisors (see below), whose sum is σ = 50027760. Its totient is φ = 14041728.

The previous prime is 30668773. The next prime is 30668783. The reversal of 30668782 is 28786603.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30668783) 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 in 7 ways as a sum of consecutive naturals, for example, 10932 + ... + 13447.

It is an arithmetic number, because the mean of its divisors is an integer number (3126735).

Almost surely, 2^30668782 is an apocalyptic number.

30668782 is a deficient number, since it is larger than the sum of its proper divisors (19358978).

30668782 is a wasteful number, since it uses less digits than its factorization.

30668782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24435.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 30668782 is about 5537.9402308078. The cubic root of 30668782 is about 313.0152591852.

The spelling of 30668782 in words is "thirty million, six hundred sixty-eight thousand, seven hundred eighty-two".