28242956 has 24 divisors (see below), whose sum is σ = 56652960. Its totient is φ = 12068352.

The previous prime is 28242941. The next prime is 28242989. The reversal of 28242956 is 65924282.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9596 + ... + 12188.

It is an arithmetic number, because the mean of its divisors is an integer number (2360540).

Almost surely, 2^28242956 is an apocalyptic number.

It is an amenable number.

28242956 is an abundant number, since it is smaller than the sum of its proper divisors (28410004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28242956 is a wasteful number, since it uses less digits than its factorization.

28242956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2993 (or 2991 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 28242956 is about 5314.4102212757. The cubic root of 28242956 is about 304.5346518266.

The spelling of 28242956 in words is "twenty-eight million, two hundred forty-two thousand, nine hundred fifty-six".