11475220 has 12 divisors (see below), whose sum is σ = 24098004. Its totient is φ = 4590080.

The previous prime is 11475209. The next prime is 11475223. The reversal of 11475220 is 2257411.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1628176 + 9847044 = 1276^2 + 3138^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11475191 and 11475200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11475223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286861 + ... + 286900.

It is an arithmetic number, because the mean of its divisors is an integer number (2008167).

Almost surely, 2^11475220 is an apocalyptic number.

11475220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11475220 is an abundant number, since it is smaller than the sum of its proper divisors (12622784).

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

11475220 is a wasteful number, since it uses less digits than its factorization.

11475220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573770 (or 573768 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 11475220 is about 3387.5094095810. The cubic root of 11475220 is about 225.5556308717. Note that the first 3 decimals are identical.

The spelling of 11475220 in words is "eleven million, four hundred seventy-five thousand, two hundred twenty".