28430014 has 4 divisors (see below), whose sum is σ = 42645024. Its totient is φ = 14215006.

The previous prime is 28430011. The next prime is 28430027. The reversal of 28430014 is 41003482.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28430011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7107502 + ... + 7107505.

It is an arithmetic number, because the mean of its divisors is an integer number (10661256).

Almost surely, 2^28430014 is an apocalyptic number.

28430014 is a deficient number, since it is larger than the sum of its proper divisors (14215010).

28430014 is a wasteful number, since it uses less digits than its factorization.

28430014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14215009.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 28430014 is about 5331.9803075405. The cubic root of 28430014 is about 305.2055015679.

Adding to 28430014 its reverse (41003482), we get a palindrome (69433496).

The spelling of 28430014 in words is "twenty-eight million, four hundred thirty thousand, fourteen".