11308988 has 12 divisors (see below), whose sum is σ = 19983600. Its totient is φ = 5599392.

The previous prime is 11308909. The next prime is 11308991. The reversal of 11308988 is 88980311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13313 + ... + 14136.

It is an arithmetic number, because the mean of its divisors is an integer number (1665300).

Almost surely, 2^11308988 is an apocalyptic number.

It is an amenable number.

11308988 is a deficient number, since it is larger than the sum of its proper divisors (8674612).

11308988 is a wasteful number, since it uses less digits than its factorization.

11308988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27556 (or 27554 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 38.

The square root of 11308988 is about 3362.8838814327. The cubic root of 11308988 is about 224.4611831308.

The spelling of 11308988 in words is "eleven million, three hundred eight thousand, nine hundred eighty-eight".