28094250 has 64 divisors (see below), whose sum is σ = 71705088. Its totient is φ = 7323200.

The previous prime is 28094249. The next prime is 28094257. The reversal of 28094250 is 5249082.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28094257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34852 + ... + 35648.

It is an arithmetic number, because the mean of its divisors is an integer number (1120392).

Almost surely, 2^28094250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28094250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35852544).

28094250 is an abundant number, since it is smaller than the sum of its proper divisors (43610838).

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

28094250 is a wasteful number, since it uses less digits than its factorization.

28094250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864 (or 854 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 28094250 is about 5300.4009282318. The cubic root of 28094250 is about 303.9992281259. Note that the first 3 decimals are identical.

The spelling of 28094250 in words is "twenty-eight million, ninety-four thousand, two hundred fifty".