28268210 has 8 divisors (see below), whose sum is σ = 50882796. Its totient is φ = 11307280.

The previous prime is 28268189. The next prime is 28268213. The reversal of 28268210 is 1286282.

It can be written as a sum of positive squares in 2 ways, for example, as 27994681 + 273529 = 5291^2 + 523^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (28268213) 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, 1413401 + ... + 1413420.

Almost surely, 2^28268210 is an apocalyptic number.

28268210 is a deficient number, since it is larger than the sum of its proper divisors (22614586).

28268210 is a wasteful number, since it uses less digits than its factorization.

28268210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2826828.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 28268210 is about 5316.7856830984. The cubic root of 28268210 is about 304.6253933548.

The spelling of 28268210 in words is "twenty-eight million, two hundred sixty-eight thousand, two hundred ten".