28223514 has 24 divisors (see below), whose sum is σ = 66710592. Its totient is φ = 8552520.

The previous prime is 28223513. The next prime is 28223527. The reversal of 28223514 is 41532282.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28223513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71074 + ... + 71469.

It is an arithmetic number, because the mean of its divisors is an integer number (2779608).

Almost surely, 2^28223514 is an apocalyptic number.

28223514 is an abundant number, since it is smaller than the sum of its proper divisors (38487078).

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

28223514 is a wasteful number, since it uses less digits than its factorization.

28223514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142562 (or 142559 counting only the distinct ones).

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

The square root of 28223514 is about 5312.5807287984. The cubic root of 28223514 is about 304.4647568552.

Adding to 28223514 its reverse (41532282), we get a palindrome (69755796).

It can be divided in two parts, 2822 and 3514, that added together give a palindrome (6336).

The spelling of 28223514 in words is "twenty-eight million, two hundred twenty-three thousand, five hundred fourteen".