12641020 has 36 divisors (see below), whose sum is σ = 30882600. Its totient is φ = 4333728.

The previous prime is 12641017. The next prime is 12641021. The reversal of 12641020 is 2014621.

12641020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12640985 and 12641003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12641021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5470 + ... + 7429.

It is an arithmetic number, because the mean of its divisors is an integer number (857850).

Almost surely, 2^12641020 is an apocalyptic number.

12641020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12641020 is an abundant number, since it is smaller than the sum of its proper divisors (18241580).

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

12641020 is a wasteful number, since it uses less digits than its factorization.

12641020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12922 (or 12913 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 12641020 is about 3555.4212127398. The cubic root of 12641020 is about 232.9489225964.

Adding to 12641020 its reverse (2014621), we get a palindrome (14655641).

The spelling of 12641020 in words is "twelve million, six hundred forty-one thousand, twenty".