11388560 has 20 divisors (see below), whose sum is σ = 26478588. Its totient is φ = 4555392.

The previous prime is 11388547. The next prime is 11388569. The reversal of 11388560 is 6588311.

It can be written as a sum of positive squares in 2 ways, for example, as 1478656 + 9909904 = 1216^2 + 3148^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11388569) 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, 71099 + ... + 71258.

Almost surely, 2^11388560 is an apocalyptic number.

11388560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11388560 is an abundant number, since it is smaller than the sum of its proper divisors (15090028).

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

11388560 is a wasteful number, since it uses less digits than its factorization.

11388560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142370 (or 142364 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 11388560 is about 3374.6940602075. The cubic root of 11388560 is about 224.9864024705.

The spelling of 11388560 in words is "eleven million, three hundred eighty-eight thousand, five hundred sixty".