28866030 has 32 divisors (see below), whose sum is σ = 69437088. Its totient is φ = 7680000.

The previous prime is 28866011. The next prime is 28866043. The reversal of 28866030 is 3066882.

It is a junction number, because it is equal to n+sod(n) for n = 28865982 and 28866000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17230 + ... + 18830.

It is an arithmetic number, because the mean of its divisors is an integer number (2169909).

Almost surely, 2^28866030 is an apocalyptic number.

28866030 is an abundant number, since it is smaller than the sum of its proper divisors (40571058).

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

28866030 is a wasteful number, since it uses less digits than its factorization.

28866030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2212.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 28866030 is about 5372.7116058839. The cubic root of 28866030 is about 306.7578506940.

The spelling of 28866030 in words is "twenty-eight million, eight hundred sixty-six thousand, thirty".