28608242 has 32 divisors (see below), whose sum is σ = 48432384. Its totient is φ = 12585600.

The previous prime is 28608241. The next prime is 28608247. The reversal of 28608242 is 24280682.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28608199 and 28608208.

It is not an unprimeable number, because it can be changed into a prime (28608241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49817 + ... + 50387.

It is an arithmetic number, because the mean of its divisors is an integer number (1513512).

Almost surely, 2^28608242 is an apocalyptic number.

28608242 is a deficient number, since it is larger than the sum of its proper divisors (19824142).

28608242 is a wasteful number, since it uses less digits than its factorization.

28608242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674.

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 28608242 is about 5348.6673106485. The cubic root of 28608242 is about 305.8419520736.

The spelling of 28608242 in words is "twenty-eight million, six hundred eight thousand, two hundred forty-two".