11820930 has 64 divisors (see below), whose sum is σ = 31321728. Its totient is φ = 2831360.

The previous prime is 11820901. The next prime is 11820947. The reversal of 11820930 is 3902811.

11820930 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 a self number, because there is not a number n which added to its sum of digits gives 11820930.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37132 + ... + 37448.

It is an arithmetic number, because the mean of its divisors is an integer number (489402).

Almost surely, 2^11820930 is an apocalyptic number.

11820930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11820930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15660864).

11820930 is an abundant number, since it is smaller than the sum of its proper divisors (19500798).

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

11820930 is a wasteful number, since it uses less digits than its factorization.

11820930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 11820930 is about 3438.1579370355. The cubic root of 11820930 is about 227.7983366113.

The spelling of 11820930 in words is "eleven million, eight hundred twenty thousand, nine hundred thirty".