12609020 has 12 divisors (see below), whose sum is σ = 26478984. Its totient is φ = 5043600.

The previous prime is 12609013. The next prime is 12609029. The reversal of 12609020 is 2090621.

12609020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 630451 = 12609020 / (1 + 2 + 6 + 0 + 9 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 12608983 and 12609001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12609029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315206 + ... + 315245.

It is an arithmetic number, because the mean of its divisors is an integer number (2206582).

Almost surely, 2^12609020 is an apocalyptic number.

12609020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12609020 is an abundant number, since it is smaller than the sum of its proper divisors (13869964).

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

12609020 is a wasteful number, since it uses less digits than its factorization.

12609020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630460 (or 630458 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 12609020 is about 3550.9181911162. The cubic root of 12609020 is about 232.7521909909.

Adding to 12609020 its reverse (2090621), we get a palindrome (14699641).

The spelling of 12609020 in words is "twelve million, six hundred nine thousand, twenty".