11820588 has 24 divisors (see below), whose sum is σ = 29703408. Its totient is φ = 3637056.

The previous prime is 11820581. The next prime is 11820607. The reversal of 11820588 is 88502811.

11820588 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11820581) 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, 37731 + ... + 38042.

It is an arithmetic number, because the mean of its divisors is an integer number (1237642).

Almost surely, 2^11820588 is an apocalyptic number.

It is an amenable number.

11820588 is an abundant number, since it is smaller than the sum of its proper divisors (17882820).

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

11820588 is a wasteful number, since it uses less digits than its factorization.

11820588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75793 (or 75791 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 33.

The square root of 11820588 is about 3438.1082007406. The cubic root of 11820588 is about 227.7961397232.

It can be divided in two parts, 118 and 20588, that added together give a triangular number (20706 = T₂₀₃).

The spelling of 11820588 in words is "eleven million, eight hundred twenty thousand, five hundred eighty-eight".