30066666 has 16 divisors (see below), whose sum is σ = 68723904. Its totient is φ = 8590464.

The previous prime is 30066661. The next prime is 30066691. The reversal of 30066666 is 66666003.

30066666 is a modest number, since divided by 6666 gives 3006 as remainder.

It is not an unprimeable number, because it can be changed into a prime (30066661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357895 + ... + 357978.

It is an arithmetic number, because the mean of its divisors is an integer number (4295244).

Almost surely, 2^30066666 is an apocalyptic number.

30066666 is an abundant number, since it is smaller than the sum of its proper divisors (38657238).

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

30066666 is a wasteful number, since it uses less digits than its factorization.

30066666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715885.

The product of its (nonzero) digits is 23328, while the sum is 33.

The square root of 30066666 is about 5483.3079432036. The cubic root of 30066666 is about 310.9532433853.

It can be divided in two parts, 300 and 66666, that added together give a palindrome (66966).

The spelling of 30066666 in words is "thirty million, sixty-six thousand, six hundred sixty-six".