28353250 has 32 divisors (see below), whose sum is σ = 55396224. Its totient is φ = 10846000.

The previous prime is 28353233. The next prime is 28353253. The reversal of 28353250 is 5235382.

It is not an unprimeable number, because it can be changed into a prime (28353253) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3285 + ... + 8215.

It is an arithmetic number, because the mean of its divisors is an integer number (1731132).

Almost surely, 2^28353250 is an apocalyptic number.

28353250 is a deficient number, since it is larger than the sum of its proper divisors (27042974).

28353250 is a wasteful number, since it uses less digits than its factorization.

28353250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4971 (or 4961 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 28353250 is about 5324.7769906354. The cubic root of 28353250 is about 304.9305584093.

The spelling of 28353250 in words is "twenty-eight million, three hundred fifty-three thousand, two hundred fifty".