28114236 has 24 divisors (see below), whose sum is σ = 72889040. Its totient is φ = 9371376.

The previous prime is 28114231. The next prime is 28114291. The reversal of 28114236 is 63241182.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28114231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130051 + ... + 130266.

Almost surely, 2^28114236 is an apocalyptic number.

It is an amenable number.

28114236 is an abundant number, since it is smaller than the sum of its proper divisors (44774804).

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

28114236 is a wasteful number, since it uses less digits than its factorization.

28114236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260330 (or 260322 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 28114236 is about 5302.2859221283. The cubic root of 28114236 is about 304.0712984891.

The spelling of 28114236 in words is "twenty-eight million, one hundred fourteen thousand, two hundred thirty-six".