28596220 has 12 divisors (see below), whose sum is σ = 60052104. Its totient is φ = 11438480.

The previous prime is 28596187. The next prime is 28596221. The reversal of 28596220 is 2269582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28596221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 714886 + ... + 714925.

It is an arithmetic number, because the mean of its divisors is an integer number (5004342).

Almost surely, 2^28596220 is an apocalyptic number.

28596220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28596220 is an abundant number, since it is smaller than the sum of its proper divisors (31455884).

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

28596220 is a wasteful number, since it uses less digits than its factorization.

28596220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429820 (or 1429818 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 28596220 is about 5347.5433612080. The cubic root of 28596220 is about 305.7991048980.

The spelling of 28596220 in words is "twenty-eight million, five hundred ninety-six thousand, two hundred twenty".