28167282 has 96 divisors (see below), whose sum is σ = 74221056. Its totient is φ = 7603200.

The previous prime is 28167281. The next prime is 28167289. The reversal of 28167282 is 28276182.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28167281) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 79618 + ... + 79970.

It is an arithmetic number, because the mean of its divisors is an integer number (773136).

Almost surely, 2^28167282 is an apocalyptic number.

28167282 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 28167282, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37110528).

28167282 is an abundant number, since it is smaller than the sum of its proper divisors (46053774).

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

28167282 is a wasteful number, since it uses less digits than its factorization.

28167282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416 (or 413 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 28167282 is about 5307.2857469709. The cubic root of 28167282 is about 304.2624191271.

Adding to 28167282 its product of digits (21504), we get a triangular number (28188786 = T₇₅₀₈).

Subtracting 28167282 from its reverse (28276182), we obtain a square (108900 = 330²).

The spelling of 28167282 in words is "twenty-eight million, one hundred sixty-seven thousand, two hundred eighty-two".