12726020 has 12 divisors (see below), whose sum is σ = 26724684. Its totient is φ = 5090400.

The previous prime is 12726019. The next prime is 12726023. The reversal of 12726020 is 2062721.

It can be written as a sum of positive squares in 2 ways, for example, as 6801664 + 5924356 = 2608^2 + 2434^2 .

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: 636301 = 12726020 / (1 + 2 + 7 + 2 + 6 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 12725983 and 12726001.

It is not an unprimeable number, because it can be changed into a prime (12726023) 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, 318131 + ... + 318170.

It is an arithmetic number, because the mean of its divisors is an integer number (2227057).

Almost surely, 2^12726020 is an apocalyptic number.

12726020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12726020 is an abundant number, since it is smaller than the sum of its proper divisors (13998664).

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

12726020 is a wasteful number, since it uses less digits than its factorization.

12726020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636310 (or 636308 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 12726020 is about 3567.3547622854. The cubic root of 12726020 is about 233.4698837917.

Adding to 12726020 its reverse (2062721), we get a palindrome (14788741).

The spelling of 12726020 in words is "twelve million, seven hundred twenty-six thousand, twenty".