28068158 has 4 divisors (see below), whose sum is σ = 42102240. Its totient is φ = 14034078.

The previous prime is 28068127. The next prime is 28068167. The reversal of 28068158 is 85186082.

It is a semiprime because it is the product of two primes.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 7017038 + ... + 7017041.

It is an arithmetic number, because the mean of its divisors is an integer number (10525560).

Almost surely, 2^28068158 is an apocalyptic number.

28068158 is a deficient number, since it is larger than the sum of its proper divisors (14034082).

28068158 is a wasteful number, since it uses less digits than its factorization.

28068158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14034081.

The product of its (nonzero) digits is 30720, while the sum is 38.

The square root of 28068158 is about 5297.9390332468. The cubic root of 28068158 is about 303.9050878104.

The spelling of 28068158 in words is "twenty-eight million, sixty-eight thousand, one hundred fifty-eight".