11828988 has 36 divisors (see below), whose sum is σ = 30008160. Its totient is φ = 3928896.

The previous prime is 11828983. The next prime is 11828989. The reversal of 11828988 is 88982811.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11828981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16093 + ... + 16811.

It is an arithmetic number, because the mean of its divisors is an integer number (833560).

Almost surely, 2^11828988 is an apocalyptic number.

11828988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11828988 is an abundant number, since it is smaller than the sum of its proper divisors (18179172).

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

11828988 is a wasteful number, since it uses less digits than its factorization.

11828988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1186 (or 1181 counting only the distinct ones).

The product of its digits is 73728, while the sum is 45.

The square root of 11828988 is about 3439.3295858350. The cubic root of 11828988 is about 227.8500861229.

The spelling of 11828988 in words is "eleven million, eight hundred twenty-eight thousand, nine hundred eighty-eight".