30705666 has 8 divisors (see below), whose sum is σ = 61411344. Its totient is φ = 10235220.

The previous prime is 30705643. The next prime is 30705677. The reversal of 30705666 is 66650703.

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

30705666 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2558800 + ... + 2558811.

It is an arithmetic number, because the mean of its divisors is an integer number (7676418).

Almost surely, 2^30705666 is an apocalyptic number.

30705666 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.

30705666 is a wasteful number, since it uses less digits than its factorization.

30705666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5117616.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 30705666 is about 5541.2693491654. The cubic root of 30705666 is about 313.1406921590.

The spelling of 30705666 in words is "thirty million, seven hundred five thousand, six hundred sixty-six".