28358282 has 8 divisors (see below), whose sum is σ = 42808836. Its totient is φ = 14088672.

The previous prime is 28358263. The next prime is 28358293. The reversal of 28358282 is 28285382.

It can be written as a sum of positive squares in 2 ways, for example, as 21911761 + 6446521 = 4681^2 + 2539^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44843 + ... + 45470.

Almost surely, 2^28358282 is an apocalyptic number.

28358282 is a deficient number, since it is larger than the sum of its proper divisors (14450554).

28358282 is a wasteful number, since it uses less digits than its factorization.

28358282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90472.

The product of its digits is 61440, while the sum is 38.

The square root of 28358282 is about 5325.2494777240. The cubic root of 28358282 is about 304.9485965508.

Subtracting from 28358282 its reverse (28285382), we obtain a square (72900 = 270²).

The spelling of 28358282 in words is "twenty-eight million, three hundred fifty-eight thousand, two hundred eighty-two".