11573220 has 24 divisors (see below), whose sum is σ = 32405184. Its totient is φ = 3086176.

The previous prime is 11573203. The next prime is 11573231. The reversal of 11573220 is 2237511.

11573220 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 an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96384 + ... + 96503.

It is an arithmetic number, because the mean of its divisors is an integer number (1350216).

Almost surely, 2^11573220 is an apocalyptic number.

11573220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11573220 is an abundant number, since it is smaller than the sum of its proper divisors (20831964).

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

11573220 is a wasteful number, since it uses less digits than its factorization.

11573220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192899 (or 192897 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 11573220 is about 3401.9435621421. The cubic root of 11573220 is about 226.1959039598.

The spelling of 11573220 in words is "eleven million, five hundred seventy-three thousand, two hundred twenty".