30668766 has 8 divisors (see below), whose sum is σ = 61337544. Its totient is φ = 10222920.

The previous prime is 30668753. The next prime is 30668773. The reversal of 30668766 is 66786603.

It is a sphenic number, since it is the product of 3 distinct primes.

30668766 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2555725 + ... + 2555736.

It is an arithmetic number, because the mean of its divisors is an integer number (7667193).

Almost surely, 2^30668766 is an apocalyptic number.

30668766 is the 3503-rd centered pentagonal number.

30668766 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30668766 is a wasteful number, since it uses less digits than its factorization.

30668766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5111466.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 30668766 is about 5537.9387862272. The cubic root of 30668766 is about 313.0152047516.

The spelling of 30668766 in words is "thirty million, six hundred sixty-eight thousand, seven hundred sixty-six".