28230336 has 168 divisors, whose sum is σ = 90799920. Its totient is φ = 8570880.

The previous prime is 28230329. The next prime is 28230359. The reversal of 28230336 is 63303282.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 12.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 910641 + ... + 910671.

Almost surely, 2^28230336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28230336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45399960).

28230336 is an abundant number, since it is smaller than the sum of its proper divisors (62569584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28230336 is a wasteful number, since it uses less digits than its factorization.

28230336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 28230336 is about 5313.2227508359. Note that the first 3 decimals coincide. The cubic root of 28230336 is about 304.4892859440.

The spelling of 28230336 in words is "twenty-eight million, two hundred thirty thousand, three hundred thirty-six".