30666850 has 12 divisors (see below), whose sum is σ = 57040434. Its totient is φ = 12266720.

The previous prime is 30666847. The next prime is 30666851. The reversal of 30666850 is 5866603.

It can be written as a sum of positive squares in 3 ways, for example, as 11978521 + 18688329 = 3461^2 + 4323^2 .

It is not an unprimeable number, because it can be changed into a prime (30666851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 306619 + ... + 306718.

Almost surely, 2^30666850 is an apocalyptic number.

30666850 is a deficient number, since it is larger than the sum of its proper divisors (26373584).

30666850 is a wasteful number, since it uses less digits than its factorization.

30666850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613349 (or 613344 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 30666850 is about 5537.7657949754. The cubic root of 30666850 is about 313.0086861802.

The spelling of 30666850 in words is "thirty million, six hundred sixty-six thousand, eight hundred fifty".