12384820 has 24 divisors (see below), whose sum is σ = 29723904. Its totient is φ = 4246176.

The previous prime is 12384811. The next prime is 12384847. The reversal of 12384820 is 2848321.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44092 + ... + 44371.

It is an arithmetic number, because the mean of its divisors is an integer number (1238496).

Almost surely, 2^12384820 is an apocalyptic number.

12384820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12384820 is an abundant number, since it is smaller than the sum of its proper divisors (17339084).

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

12384820 is a wasteful number, since it uses less digits than its factorization.

12384820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88479 (or 88477 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 12384820 is about 3519.2072971054. The cubic root of 12384820 is about 231.3644167183.

The spelling of 12384820 in words is "twelve million, three hundred eighty-four thousand, eight hundred twenty".