11804220 has 36 divisors (see below), whose sum is σ = 35806680. Its totient is φ = 3147744.

The previous prime is 11804209. The next prime is 11804249. The reversal of 11804220 is 2240811.

11804220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11804193 and 11804202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32610 + ... + 32969.

It is an arithmetic number, because the mean of its divisors is an integer number (994630).

Almost surely, 2^11804220 is an apocalyptic number.

11804220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11804220 is an abundant number, since it is smaller than the sum of its proper divisors (24002460).

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

11804220 is a wasteful number, since it uses less digits than its factorization.

11804220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65594 (or 65589 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 11804220 is about 3435.7269973035. The cubic root of 11804220 is about 227.6909478459.

The spelling of 11804220 in words is "eleven million, eight hundred four thousand, two hundred twenty".