28242179 has 12 divisors (see below), whose sum is σ = 33413400. Its totient is φ = 23794848.

The previous prime is 28242119. The next prime is 28242199. The reversal of 28242179 is 97124282.

It is a de Polignac number, because none of the positive numbers 2^k-28242179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28242119) 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 11 ways as a sum of consecutive naturals, for example, 1994 + ... + 7775.

It is an arithmetic number, because the mean of its divisors is an integer number (2784450).

Almost surely, 2^28242179 is an apocalyptic number.

28242179 is a deficient number, since it is larger than the sum of its proper divisors (5171221).

28242179 is an equidigital number, since it uses as much as digits as its factorization.

28242179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9842 (or 9835 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 28242179 is about 5314.3371176469. The cubic root of 28242179 is about 304.5318590878.

The spelling of 28242179 in words is "twenty-eight million, two hundred forty-two thousand, one hundred seventy-nine".