28026158 has 8 divisors (see below), whose sum is σ = 42207480. Its totient is φ = 13957000.

The previous prime is 28026157. The next prime is 28026161. The reversal of 28026158 is 85162082.

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

It is a super-3 number, since 3×28026158³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28026157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27413 + ... + 28416.

It is an arithmetic number, because the mean of its divisors is an integer number (5275935).

Almost surely, 2^28026158 is an apocalyptic number.

28026158 is a deficient number, since it is larger than the sum of its proper divisors (14181322).

28026158 is a wasteful number, since it uses less digits than its factorization.

28026158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56082.

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

The square root of 28026158 is about 5293.9737437959. The cubic root of 28026158 is about 303.7534285827.

The spelling of 28026158 in words is "twenty-eight million, twenty-six thousand, one hundred fifty-eight".