11285920 has 24 divisors (see below), whose sum is σ = 26663364. Its totient is φ = 4514304.

The previous prime is 11285903. The next prime is 11285921. The reversal of 11285920 is 2958211.

It can be written as a sum of positive squares in 2 ways, for example, as 10784656 + 501264 = 3284^2 + 708^2 .

It is not an unprimeable number, because it can be changed into a prime (11285921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35109 + ... + 35428.

Almost surely, 2^11285920 is an apocalyptic number.

11285920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11285920 is an abundant number, since it is smaller than the sum of its proper divisors (15377444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11285920 is an equidigital number, since it uses as much as digits as its factorization.

11285920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70552 (or 70544 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 11285920 is about 3359.4523363191. The cubic root of 11285920 is about 224.3084610905.

The spelling of 11285920 in words is "eleven million, two hundred eighty-five thousand, nine hundred twenty".