28299282 has 16 divisors (see below), whose sum is σ = 61744032. Its totient is φ = 8575520.

The previous prime is 28299263. The next prime is 28299317.

28299282 is nontrivially palindromic in base 10.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214323 + ... + 214454.

It is an arithmetic number, because the mean of its divisors is an integer number (3859002).

Almost surely, 2^28299282 is an apocalyptic number.

28299282 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28299282 is an abundant number, since it is smaller than the sum of its proper divisors (33444750).

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

28299282 is a wasteful number, since it uses less digits than its factorization.

28299282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428793.

The product of its digits is 82944, while the sum is 42.

The square root of 28299282 is about 5319.7069468158. The cubic root of 28299282 is about 304.7369657335.

The spelling of 28299282 in words is "twenty-eight million, two hundred ninety-nine thousand, two hundred eighty-two".