28168214 has 16 divisors (see below), whose sum is σ = 43129680. Its totient is φ = 13793760.

The previous prime is 28168199. The next prime is 28168223. The reversal of 28168214 is 41286182.

It is a happy number.

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, 45197 + ... + 45815.

It is an arithmetic number, because the mean of its divisors is an integer number (2695605).

Almost surely, 2^28168214 is an apocalyptic number.

28168214 is a deficient number, since it is larger than the sum of its proper divisors (14961466).

28168214 is a wasteful number, since it uses less digits than its factorization.

28168214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055.

The product of its digits is 6144, while the sum is 32.

The square root of 28168214 is about 5307.3735500716. The cubic root of 28168214 is about 304.2657749052.

It can be divided in two parts, 28168 and 214, that added together give a palindrome (28382).

The spelling of 28168214 in words is "twenty-eight million, one hundred sixty-eight thousand, two hundred fourteen".