12732020 has 48 divisors (see below), whose sum is σ = 30777600. Its totient is φ = 4333824.

The previous prime is 12732019. The next prime is 12732047. The reversal of 12732020 is 2023721.

It is a self number, because there is not a number n which added to its sum of digits gives 12732020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27632 + ... + 28088.

It is an arithmetic number, because the mean of its divisors is an integer number (641200).

Almost surely, 2^12732020 is an apocalyptic number.

12732020 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 12732020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15388800).

12732020 is an abundant number, since it is smaller than the sum of its proper divisors (18045580).

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

12732020 is a wasteful number, since it uses less digits than its factorization.

12732020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672 (or 670 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 12732020 is about 3568.1956224400. The cubic root of 12732020 is about 233.5065697629.

Adding to 12732020 its reverse (2023721), we get a palindrome (14755741).

The spelling of 12732020 in words is "twelve million, seven hundred thirty-two thousand, twenty".