30866120 has 16 divisors (see below), whose sum is σ = 69448860. Its totient is φ = 12346432.

The previous prime is 30866093. The next prime is 30866149. The reversal of 30866120 is 2166803.

It can be written as a sum of positive squares in 2 ways, for example, as 28922884 + 1943236 = 5378^2 + 1394^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30866120.

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, 385787 + ... + 385866.

Almost surely, 2^30866120 is an apocalyptic number.

It is an amenable number.

30866120 is an abundant number, since it is smaller than the sum of its proper divisors (38582740).

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

30866120 is a wasteful number, since it uses less digits than its factorization.

30866120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771664 (or 771660 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 30866120 is about 5555.7285750836. The cubic root of 30866120 is about 313.6851889643.

The spelling of 30866120 in words is "thirty million, eight hundred sixty-six thousand, one hundred twenty".