28514568 has 64 divisors (see below), whose sum is σ = 74036160. Its totient is φ = 9144576.

The previous prime is 28514561. The next prime is 28514609. The reversal of 28514568 is 86541582.

It is not an unprimeable number, because it can be changed into a prime (28514561) 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, 144646 + ... + 144842.

It is an arithmetic number, because the mean of its divisors is an integer number (1156815).

Almost surely, 2^28514568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28514568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37018080).

28514568 is an abundant number, since it is smaller than the sum of its proper divisors (45521592).

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

28514568 is a wasteful number, since it uses less digits than its factorization.

28514568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 402 counting only the distinct ones).

The product of its digits is 76800, while the sum is 39.

The square root of 28514568 is about 5339.9033699122. The cubic root of 28514568 is about 305.5077737197.

The spelling of 28514568 in words is "twenty-eight million, five hundred fourteen thousand, five hundred sixty-eight".