28266159 has 16 divisors (see below), whose sum is σ = 38304000. Its totient is φ = 18539136.

The previous prime is 28266137. The next prime is 28266191. The reversal of 28266159 is 95166282.

It is not a de Polignac number, because 28266159 - 2⁵ = 28266127 is a prime.

It is a super-2 number, since 2×28266159² = 1597951489226562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28266059) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 67252 + ... + 67670.

It is an arithmetic number, because the mean of its divisors is an integer number (2394000).

Almost surely, 2^28266159 is an apocalyptic number.

28266159 is a deficient number, since it is larger than the sum of its proper divisors (10037841).

28266159 is a wasteful number, since it uses less digits than its factorization.

28266159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734.

The product of its digits is 51840, while the sum is 39.

The square root of 28266159 is about 5316.5927999048. The cubic root of 28266159 is about 304.6180258114.

The spelling of 28266159 in words is "twenty-eight million, two hundred sixty-six thousand, one hundred fifty-nine".