28585130 has 24 divisors (see below), whose sum is σ = 59854788. Its totient is φ = 9800448.

The previous prime is 28585111. The next prime is 28585163. The reversal of 28585130 is 3158582.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 26759929 + 1825201 = 5173^2 + 1351^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28679 + ... + 29658.

Almost surely, 2^28585130 is an apocalyptic number.

28585130 is an abundant number, since it is smaller than the sum of its proper divisors (31269658).

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

28585130 is a wasteful number, since it uses less digits than its factorization.

28585130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58358 (or 58351 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 28585130 is about 5346.5063359169. The cubic root of 28585130 is about 305.7595687802.

The spelling of 28585130 in words is "twenty-eight million, five hundred eighty-five thousand, one hundred thirty".