28026250 has 40 divisors (see below), whose sum is σ = 60055776. Its totient is φ = 9606000.

The previous prime is 28026223. The next prime is 28026253. The reversal of 28026250 is 5262082.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (28026253) by changing a digit.

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 in 19 ways as a sum of consecutive naturals, for example, 7149 + ... + 10351.

Almost surely, 2^28026250 is an apocalyptic number.

28026250 is an abundant number, since it is smaller than the sum of its proper divisors (32029526).

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

28026250 is an equidigital number, since it uses as much as digits as its factorization.

28026250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3232 (or 3217 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 28026250 is about 5293.9824329138. The cubic root of 28026250 is about 303.7537609542.

The spelling of 28026250 in words is "twenty-eight million, twenty-six thousand, two hundred fifty".