11813560 has 32 divisors (see below), whose sum is σ = 28998000. Its totient is φ = 4295680.

The previous prime is 11813551. The next prime is 11813563. The reversal of 11813560 is 6531811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11813563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12985 + ... + 13864.

Almost surely, 2^11813560 is an apocalyptic number.

11813560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11813560 is an abundant number, since it is smaller than the sum of its proper divisors (17184440).

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

11813560 is a wasteful number, since it uses less digits than its factorization.

11813560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26871 (or 26867 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 11813560 is about 3437.0859750667. The cubic root of 11813560 is about 227.7509849288.

The spelling of 11813560 in words is "eleven million, eight hundred thirteen thousand, five hundred sixty".