28036250 has 40 divisors (see below), whose sum is σ = 57356640. Its totient is φ = 10190000.

The previous prime is 28036249. The next prime is 28036259. The reversal of 28036250 is 5263082.

It is not an unprimeable number, because it can be changed into a prime (28036259) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12731 + ... + 14769.

It is an arithmetic number, because the mean of its divisors is an integer number (1433916).

Almost surely, 2^28036250 is an apocalyptic number.

28036250 is an abundant number, since it is smaller than the sum of its proper divisors (29320390).

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

28036250 is a wasteful number, since it uses less digits than its factorization.

28036250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2072 (or 2057 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 28036250 is about 5294.9268172469. The cubic root of 28036250 is about 303.7898839509.

The spelling of 28036250 in words is "twenty-eight million, thirty-six thousand, two hundred fifty".