28814236 has 24 divisors (see below), whose sum is σ = 55440000. Its totient is φ = 12994800.

The previous prime is 28814207. The next prime is 28814249. The reversal of 28814236 is 63241882.

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, 3265 + ... + 8263.

It is an arithmetic number, because the mean of its divisors is an integer number (2310000).

Almost surely, 2^28814236 is an apocalyptic number.

It is an amenable number.

28814236 is a deficient number, since it is larger than the sum of its proper divisors (26625764).

28814236 is a wasteful number, since it uses less digits than its factorization.

28814236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5145 (or 5143 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 28814236 is about 5367.8893431217. The cubic root of 28814236 is about 306.5742701060.

It can be divided in two parts, 2881 and 4236, that added together give a palindrome (7117).

The spelling of 28814236 in words is "twenty-eight million, eight hundred fourteen thousand, two hundred thirty-six".