28860270 has 16 divisors (see below), whose sum is σ = 69264720. Its totient is φ = 7696064.

The previous prime is 28860253. The next prime is 28860289. The reversal of 28860270 is 7206882.

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 7 ways as a sum of consecutive naturals, for example, 480975 + ... + 481034.

It is an arithmetic number, because the mean of its divisors is an integer number (4329045).

Almost surely, 2^28860270 is an apocalyptic number.

28860270 is an abundant number, since it is smaller than the sum of its proper divisors (40404450).

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

28860270 is a wasteful number, since it uses less digits than its factorization.

28860270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962019.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 28860270 is about 5372.1755369682. The cubic root of 28860270 is about 306.7374455932.

The spelling of 28860270 in words is "twenty-eight million, eight hundred sixty thousand, two hundred seventy".