28082156 has 24 divisors (see below), whose sum is σ = 51698304. Its totient is φ = 13328640.

The previous prime is 28082107. The next prime is 28082161. The reversal of 28082156 is 65128082.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4436 + ... + 8708.

It is an arithmetic number, because the mean of its divisors is an integer number (2154096).

Almost surely, 2^28082156 is an apocalyptic number.

It is an amenable number.

28082156 is a deficient number, since it is larger than the sum of its proper divisors (23616148).

28082156 is a wasteful number, since it uses less digits than its factorization.

28082156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4361 (or 4359 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 28082156 is about 5299.2599483324. The cubic root of 28082156 is about 303.9556000484.

The spelling of 28082156 in words is "twenty-eight million, eighty-two thousand, one hundred fifty-six".