28191482 has 8 divisors (see below), whose sum is σ = 46131552. Its totient is φ = 12814300.

The previous prime is 28191467. The next prime is 28191517. The reversal of 28191482 is 28419182.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640694 + ... + 640737.

It is an arithmetic number, because the mean of its divisors is an integer number (5766444).

Almost surely, 2^28191482 is an apocalyptic number.

28191482 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28191482 is a deficient number, since it is larger than the sum of its proper divisors (17940070).

28191482 is a wasteful number, since it uses less digits than its factorization.

28191482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281444.

The product of its digits is 9216, while the sum is 35.

The square root of 28191482 is about 5309.5651422692. The cubic root of 28191482 is about 304.3495301573.

The spelling of 28191482 in words is "twenty-eight million, one hundred ninety-one thousand, four hundred eighty-two".