28232514 has 24 divisors (see below), whose sum is σ = 61281792. Its totient is φ = 9393720.

The previous prime is 28232513. The next prime is 28232521. The reversal of 28232514 is 41523282.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (28232513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12319 + ... + 14429.

It is an arithmetic number, because the mean of its divisors is an integer number (2553408).

Almost surely, 2^28232514 is an apocalyptic number.

28232514 is an abundant number, since it is smaller than the sum of its proper divisors (33049278).

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

28232514 is a wasteful number, since it uses less digits than its factorization.

28232514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2862 (or 2859 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 28232514 is about 5313.4277072338. The cubic root of 28232514 is about 304.4971162984.

Adding to 28232514 its reverse (41523282), we get a palindrome (69755796).

The spelling of 28232514 in words is "twenty-eight million, two hundred thirty-two thousand, five hundred fourteen".