28260353 has 16 divisors (see below), whose sum is σ = 33868800. Its totient is φ = 23276880.

The previous prime is 28260329. The next prime is 28260361. The reversal of 28260353 is 35306282.

It is not a de Polignac number, because 28260353 - 2²⁰ = 27211777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28260373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1868 + ... + 7746.

It is an arithmetic number, because the mean of its divisors is an integer number (2116800).

Almost surely, 2^28260353 is an apocalyptic number.

28260353 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

28260353 is a deficient number, since it is larger than the sum of its proper divisors (5608447).

28260353 is a wasteful number, since it uses less digits than its factorization.

28260353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5932.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 28260353 is about 5316.0467454679. The cubic root of 28260353 is about 304.5971677320.

The spelling of 28260353 in words is "twenty-eight million, two hundred sixty thousand, three hundred fifty-three".