11475820 has 12 divisors (see below), whose sum is σ = 24099264. Its totient is φ = 4590320.

The previous prime is 11475817. The next prime is 11475881. The reversal of 11475820 is 2857411.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286876 + ... + 286915.

It is an arithmetic number, because the mean of its divisors is an integer number (2008272).

Almost surely, 2^11475820 is an apocalyptic number.

11475820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11475820 is an abundant number, since it is smaller than the sum of its proper divisors (12623444).

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

11475820 is a wasteful number, since it uses less digits than its factorization.

11475820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573800 (or 573798 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 11475820 is about 3387.5979690630. The cubic root of 11475820 is about 225.5595619806.

The spelling of 11475820 in words is "eleven million, four hundred seventy-five thousand, eight hundred twenty".