28245250 has 32 divisors (see below), whose sum is σ = 57687552. Its totient is φ = 10270000.

The previous prime is 28245241. The next prime is 28245251. The reversal of 28245250 is 5254282.

It is not an unprimeable number, because it can be changed into a prime (28245251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2386 + ... + 7885.

It is an arithmetic number, because the mean of its divisors is an integer number (1802736).

Almost surely, 2^28245250 is an apocalyptic number.

28245250 is an abundant number, since it is smaller than the sum of its proper divisors (29442302).

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

28245250 is a wasteful number, since it uses less digits than its factorization.

28245250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10299 (or 10289 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 28245250 is about 5314.6260451701. The cubic root of 28245250 is about 304.5428967565.

The spelling of 28245250 in words is "twenty-eight million, two hundred forty-five thousand, two hundred fifty".