28396282 has 4 divisors (see below), whose sum is σ = 42594426. Its totient is φ = 14198140.

The previous prime is 28396267. The next prime is 28396289. The reversal of 28396282 is 28269382.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16638241 + 11758041 = 4079^2 + 3429^2 .

It is not an unprimeable number, because it can be changed into a prime (28396289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7099069 + ... + 7099072.

Almost surely, 2^28396282 is an apocalyptic number.

28396282 is a deficient number, since it is larger than the sum of its proper divisors (14198144).

28396282 is a wasteful number, since it uses less digits than its factorization.

28396282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14198143.

The product of its digits is 82944, while the sum is 40.

The square root of 28396282 is about 5328.8161912380. The cubic root of 28396282 is about 305.0847457780.

The spelling of 28396282 in words is "twenty-eight million, three hundred ninety-six thousand, two hundred eighty-two".