11285880 has 32 divisors (see below), whose sum is σ = 33858000. Its totient is φ = 3009536.

The previous prime is 11285863. The next prime is 11285881. The reversal of 11285880 is 8858211.

11285880 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11285881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46905 + ... + 47144.

Almost surely, 2^11285880 is an apocalyptic number.

11285880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11285880 is an abundant number, since it is smaller than the sum of its proper divisors (22572120).

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

11285880 is a wasteful number, since it uses less digits than its factorization.

11285880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94063 (or 94059 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 33.

The square root of 11285880 is about 3359.4463829625. The cubic root of 11285880 is about 224.3081960892.

The spelling of 11285880 in words is "eleven million, two hundred eighty-five thousand, eight hundred eighty".