28244282 has 8 divisors (see below), whose sum is σ = 46217952. Its totient is φ = 12838300.

The previous prime is 28244273. The next prime is 28244287.

It is a happy number.

28244282 is nontrivially palindromic in base 10.

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

It is not an unprimeable number, because it can be changed into a prime (28244287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 641894 + ... + 641937.

It is an arithmetic number, because the mean of its divisors is an integer number (5777244).

Almost surely, 2^28244282 is an apocalyptic number.

28244282 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28244282 is a deficient number, since it is larger than the sum of its proper divisors (17973670).

28244282 is a wasteful number, since it uses less digits than its factorization.

28244282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1283844.

The product of its digits is 16384, while the sum is 32.

The square root of 28244282 is about 5314.5349749531. The cubic root of 28244282 is about 304.5394176949.

The spelling of 28244282 in words is "twenty-eight million, two hundred forty-four thousand, two hundred eighty-two".