28236430 has 16 divisors (see below), whose sum is σ = 52578720. Its totient is φ = 10904992.

The previous prime is 28236421. The next prime is 28236449. The reversal of 28236430 is 3463282.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48394 + ... + 48973.

It is an arithmetic number, because the mean of its divisors is an integer number (3286170).

Almost surely, 2^28236430 is an apocalyptic number.

28236430 is a deficient number, since it is larger than the sum of its proper divisors (24342290).

28236430 is a wasteful number, since it uses less digits than its factorization.

28236430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97403.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 28236430 is about 5313.7961948121. The cubic root of 28236430 is about 304.5111941046.

The spelling of 28236430 in words is "twenty-eight million, two hundred thirty-six thousand, four hundred thirty".