12382020 has 144 divisors (see below), whose sum is σ = 44448768. Its totient is φ = 2730240.

The previous prime is 12381991. The next prime is 12382021. The reversal of 12382020 is 2028321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12381984 and 12382002.

It is not an unprimeable number, because it can be changed into a prime (12382021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 38902 + ... + 39218.

It is an arithmetic number, because the mean of its divisors is an integer number (308672).

Almost surely, 2^12382020 is an apocalyptic number.

12382020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12382020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22224384).

12382020 is an abundant number, since it is smaller than the sum of its proper divisors (32066748).

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

12382020 is a wasteful number, since it uses less digits than its factorization.

12382020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370 (or 365 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 12382020 is about 3518.8094577570. The cubic root of 12382020 is about 231.3469795333.

The spelling of 12382020 in words is "twelve million, three hundred eighty-two thousand, twenty".