28586030 has 64 divisors (see below), whose sum is σ = 59222016. Its totient is φ = 9840000.

The previous prime is 28586023. The next prime is 28586057. The reversal of 28586030 is 3068582.

It is a super-2 number, since 2×28586030² = 1634322222321800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 282980 + ... + 283080.

It is an arithmetic number, because the mean of its divisors is an integer number (925344).

Almost surely, 2^28586030 is an apocalyptic number.

28586030 is an abundant number, since it is smaller than the sum of its proper divisors (30635986).

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

28586030 is a wasteful number, since it uses less digits than its factorization.

28586030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 28586030 is about 5346.5905023669. The cubic root of 28586030 is about 305.7627776832.

It can be divided in two parts, 2858 and 6030, that added together give a palindrome (8888).

The spelling of 28586030 in words is "twenty-eight million, five hundred eighty-six thousand, thirty".