30866080 has 144 divisors (see below), whose sum is σ = 88252416. Its totient is φ = 10160640.

The previous prime is 30866057. The next prime is 30866093. The reversal of 30866080 is 8066803.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 242977 + ... + 243103.

It is an arithmetic number, because the mean of its divisors is an integer number (612864).

Almost surely, 2^30866080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30866080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44126208).

30866080 is an abundant number, since it is smaller than the sum of its proper divisors (57386336).

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

30866080 is a wasteful number, since it uses less digits than its factorization.

30866080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 30866080 is about 5555.7249751945. The cubic root of 30866080 is about 313.6850534606.

The spelling of 30866080 in words is "thirty million, eight hundred sixty-six thousand, eighty".