28160265 has 32 divisors (see below), whose sum is σ = 51736320. Its totient is φ = 12812544.

The previous prime is 28160263. The next prime is 28160273. The reversal of 28160265 is 56206182.

It is not a de Polignac number, because 28160265 - 2¹ = 28160263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28160263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27747 + ... + 28743.

It is an arithmetic number, because the mean of its divisors is an integer number (1616760).

Almost surely, 2^28160265 is an apocalyptic number.

It is an amenable number.

28160265 is a deficient number, since it is larger than the sum of its proper divisors (23576055).

28160265 is a wasteful number, since it uses less digits than its factorization.

28160265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 28160265 is about 5306.6246334181. The cubic root of 28160265 is about 304.2371511973.

The spelling of 28160265 in words is "twenty-eight million, one hundred sixty thousand, two hundred sixty-five".