28430894 has 16 divisors (see below), whose sum is σ = 43542576. Its totient is φ = 13920000.

The previous prime is 28430873. The next prime is 28430929. The reversal of 28430894 is 49803482.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 18869 + ... + 20319.

It is an arithmetic number, because the mean of its divisors is an integer number (2721411).

Almost surely, 2^28430894 is an apocalyptic number.

28430894 is a deficient number, since it is larger than the sum of its proper divisors (15111682).

28430894 is a wasteful number, since it uses less digits than its factorization.

28430894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1651.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 28430894 is about 5332.0628278369. The cubic root of 28430894 is about 305.2086505647.

The spelling of 28430894 in words is "twenty-eight million, four hundred thirty thousand, eight hundred ninety-four".