28269055 has 32 divisors (see below), whose sum is σ = 38246400. Its totient is φ = 19958400.

The previous prime is 28269029. The next prime is 28269061. The reversal of 28269055 is 55096282.

It is a happy number.

It is not a de Polignac number, because 28269055 - 2⁹ = 28268543 is a prime.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85240 + ... + 85570.

It is an arithmetic number, because the mean of its divisors is an integer number (1195200).

Almost surely, 2^28269055 is an apocalyptic number.

28269055 is a deficient number, since it is larger than the sum of its proper divisors (9977345).

28269055 is a wasteful number, since it uses less digits than its factorization.

28269055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 28269055 is about 5316.8651478103. The cubic root of 28269055 is about 304.6284286359.

It can be divided in two parts, 2826 and 9055, that added together give a square (11881 = 109²).

The spelling of 28269055 in words is "twenty-eight million, two hundred sixty-nine thousand, fifty-five".