11532220 has 24 divisors (see below), whose sum is σ = 27677664. Its totient is φ = 3953856.

The previous prime is 11532203. The next prime is 11532247. The reversal of 11532220 is 2223511.

It is a junction number, because it is equal to n+sod(n) for n = 11532194 and 11532203.

It is a congruent number.

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, 41047 + ... + 41326.

It is an arithmetic number, because the mean of its divisors is an integer number (1153236).

Almost surely, 2^11532220 is an apocalyptic number.

11532220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11532220 is an abundant number, since it is smaller than the sum of its proper divisors (16145444).

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

11532220 is a wasteful number, since it uses less digits than its factorization.

11532220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82389 (or 82387 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 11532220 is about 3395.9122485718. The cubic root of 11532220 is about 225.9284760745.

Adding to 11532220 its reverse (2223511), we get a palindrome (13755731).

The spelling of 11532220 in words is "eleven million, five hundred thirty-two thousand, two hundred twenty".