28560630 has 48 divisors (see below), whose sum is σ = 79740720. Its totient is φ = 6527808.

The previous prime is 28560619. The next prime is 28560671. The reversal of 28560630 is 3606582.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

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, 8245 + ... + 11184.

It is an arithmetic number, because the mean of its divisors is an integer number (1661265).

Almost surely, 2^28560630 is an apocalyptic number.

28560630 is an abundant number, since it is smaller than the sum of its proper divisors (51180090).

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

28560630 is a wasteful number, since it uses less digits than its factorization.

28560630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19453 (or 19446 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 28560630 is about 5344.2146289235. The cubic root of 28560630 is about 305.6721894256.

The spelling of 28560630 in words is "twenty-eight million, five hundred sixty thousand, six hundred thirty".