28166126 has 16 divisors (see below), whose sum is σ = 43182720. Its totient is φ = 13775160.

The previous prime is 28166119. The next prime is 28166137. The reversal of 28166126 is 62166182.

It is a junction number, because it is equal to n+sod(n) for n = 28166092 and 28166101.

It is a congruent number.

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, 19025 + ... + 20451.

It is an arithmetic number, because the mean of its divisors is an integer number (2698920).

Almost surely, 2^28166126 is an apocalyptic number.

28166126 is a deficient number, since it is larger than the sum of its proper divisors (15016594).

28166126 is a wasteful number, since it uses less digits than its factorization.

28166126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639.

The product of its digits is 6912, while the sum is 32.

The square root of 28166126 is about 5307.1768389606. The cubic root of 28166126 is about 304.2582567071.

The spelling of 28166126 in words is "twenty-eight million, one hundred sixty-six thousand, one hundred twenty-six".