28224850 has 12 divisors (see below), whose sum is σ = 52498314. Its totient is φ = 11289920.

The previous prime is 28224827. The next prime is 28224853. The reversal of 28224850 is 5842282.

It can be written as a sum of positive squares in 3 ways, for example, as 25010001 + 3214849 = 5001^2 + 1793^2 .

It is not an unprimeable number, because it can be changed into a prime (28224853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 282199 + ... + 282298.

Almost surely, 2^28224850 is an apocalyptic number.

28224850 is a deficient number, since it is larger than the sum of its proper divisors (24273464).

28224850 is a wasteful number, since it uses less digits than its factorization.

28224850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564509 (or 564504 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 28224850 is about 5312.7064665761. The cubic root of 28224850 is about 304.4695608695.

The spelling of 28224850 in words is "twenty-eight million, two hundred twenty-four thousand, eight hundred fifty".