11386820 has 24 divisors (see below), whose sum is σ = 24105984. Its totient is φ = 4517856.

The previous prime is 11386819. The next prime is 11386829. The reversal of 11386820 is 2868311.

It is not an unprimeable number, because it can be changed into a prime (11386829) 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, 299 + ... + 4781.

It is an arithmetic number, because the mean of its divisors is an integer number (1004416).

Almost surely, 2^11386820 is an apocalyptic number.

11386820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11386820 is an abundant number, since it is smaller than the sum of its proper divisors (12719164).

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

11386820 is a wasteful number, since it uses less digits than its factorization.

11386820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4619 (or 4617 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 11386820 is about 3374.4362492126. The cubic root of 11386820 is about 224.9749437119.

The spelling of 11386820 in words is "eleven million, three hundred eighty-six thousand, eight hundred twenty".