11428263 has 64 divisors (see below), whose sum is σ = 22118400. Its totient is φ = 5654880.

The previous prime is 11428259. The next prime is 11428271. The reversal of 11428263 is 36282411.

It is not a de Polignac number, because 11428263 - 2² = 11428259 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11428273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 47698 + ... + 47936.

It is an arithmetic number, because the mean of its divisors is an integer number (345600).

Almost surely, 2^11428263 is an apocalyptic number.

11428263 is a deficient number, since it is larger than the sum of its proper divisors (10690137).

11428263 is a wasteful number, since it uses less digits than its factorization.

11428263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 283 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 11428263 is about 3380.5714014054. The cubic root of 11428263 is about 225.2475497628.

The spelling of 11428263 in words is "eleven million, four hundred twenty-eight thousand, two hundred sixty-three".