28263168 has 180 divisors, whose sum is σ = 89036640. Its totient is φ = 8902656.

The previous prime is 28263161. The next prime is 28263173. The reversal of 28263168 is 86136282.

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

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (28263161) 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, 601321 + ... + 601367.

It is an arithmetic number, because the mean of its divisors is an integer number (494648).

Almost surely, 2^28263168 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 28263168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44518320).

28263168 is an abundant number, since it is smaller than the sum of its proper divisors (60773472).

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

28263168 is an equidigital number, since it uses as much as digits as its factorization.

28263168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 81 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 28263168 is about 5316.3115032887. The cubic root of 28263168 is about 304.6072809881.

The spelling of 28263168 in words is "twenty-eight million, two hundred sixty-three thousand, one hundred sixty-eight".