11789220 has 48 divisors (see below), whose sum is σ = 33163200. Its totient is φ = 3129216.

The previous prime is 11789213. The next prime is 11789221. The reversal of 11789220 is 2298711.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (11789221) 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 15 ways as a sum of consecutive naturals, for example, 20659 + ... + 21221.

It is an arithmetic number, because the mean of its divisors is an integer number (690900).

Almost surely, 2^11789220 is an apocalyptic number.

11789220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11789220 is an abundant number, since it is smaller than the sum of its proper divisors (21373980).

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

11789220 is a wasteful number, since it uses less digits than its factorization.

11789220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924 (or 922 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 11789220 is about 3433.5433592719. The cubic root of 11789220 is about 227.5944622413.

The spelling of 11789220 in words is "eleven million, seven hundred eighty-nine thousand, two hundred twenty".