28230008 has 8 divisors (see below), whose sum is σ = 52931280. Its totient is φ = 14115000.

The previous prime is 28229989. The next prime is 28230011. The reversal of 28230008 is 80003282.

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 1764368 + ... + 1764383.

It is an arithmetic number, because the mean of its divisors is an integer number (6616410).

Almost surely, 2^28230008 is an apocalyptic number.

It is an amenable number.

28230008 is a deficient number, since it is larger than the sum of its proper divisors (24701272).

28230008 is a wasteful number, since it uses less digits than its factorization.

28230008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3528757 (or 3528753 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 28230008 is about 5313.1918843573. The cubic root of 28230008 is about 304.4881066821.

The spelling of 28230008 in words is "twenty-eight million, two hundred thirty thousand, eight".