28343282 has 24 divisors (see below), whose sum is σ = 47070828. Its totient is φ = 12789920.

The previous prime is 28343279. The next prime is 28343309. The reversal of 28343282 is 28234382.

It can be written as a sum of positive squares in 2 ways, for example, as 19456921 + 8886361 = 4411^2 + 2981^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41528 + ... + 42204.

Almost surely, 2^28343282 is an apocalyptic number.

28343282 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28343282 is a deficient number, since it is larger than the sum of its proper divisors (18727546).

28343282 is a wasteful number, since it uses less digits than its factorization.

28343282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874 (or 863 counting only the distinct ones).

The product of its digits is 18432, while the sum is 32.

The square root of 28343282 is about 5323.8409067139. The cubic root of 28343282 is about 304.8948199540.

Subtracting from 28343282 its reverse (28234382), we obtain a square (108900 = 330²).

It can be divided in two parts, 2834 and 3282, that added together give a palindrome (6116).

The spelling of 28343282 in words is "twenty-eight million, three hundred forty-three thousand, two hundred eighty-two".