28543068 has 36 divisors (see below), whose sum is σ = 76396320. Its totient is φ = 8954496.

The previous prime is 28543063. The next prime is 28543087. The reversal of 28543068 is 86034582.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28543061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22708 + ... + 23931.

It is an arithmetic number, because the mean of its divisors is an integer number (2122120).

Almost surely, 2^28543068 is an apocalyptic number.

It is an amenable number.

28543068 is an abundant number, since it is smaller than the sum of its proper divisors (47853252).

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

28543068 is a wasteful number, since it uses less digits than its factorization.

28543068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46666 (or 46661 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 28543068 is about 5342.5712910545. The cubic root of 28543068 is about 305.6095237248.

The spelling of 28543068 in words is "twenty-eight million, five hundred forty-three thousand, sixty-eight".