28430594 has 4 divisors (see below), whose sum is σ = 42645894. Its totient is φ = 14215296.

The previous prime is 28430569. The next prime is 28430609. The reversal of 28430594 is 49503482.

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

It can be written as a sum of positive squares in only one way, i.e., 27300625 + 1129969 = 5225^2 + 1063^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7107647 + ... + 7107650.

Almost surely, 2^28430594 is an apocalyptic number.

28430594 is a deficient number, since it is larger than the sum of its proper divisors (14215300).

28430594 is a wasteful number, since it uses less digits than its factorization.

28430594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14215299.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 28430594 is about 5332.0346960612. The cubic root of 28430594 is about 305.2075770503.

The spelling of 28430594 in words is "twenty-eight million, four hundred thirty thousand, five hundred ninety-four".