12726040 has 32 divisors (see below), whose sum is σ = 29043360. Its totient is φ = 5017600.

The previous prime is 12726037. The next prime is 12726059. The reversal of 12726040 is 4062721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600 + ... + 5080.

It is an arithmetic number, because the mean of its divisors is an integer number (907605).

Almost surely, 2^12726040 is an apocalyptic number.

12726040 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 12726040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14521680).

12726040 is an abundant number, since it is smaller than the sum of its proper divisors (16317320).

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

12726040 is a wasteful number, since it uses less digits than its factorization.

12726040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4563 (or 4559 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 12726040 is about 3567.3575654818. The cubic root of 12726040 is about 233.4700060974.

Adding to 12726040 its reverse (4062721), we get a palindrome (16788761).

The spelling of 12726040 in words is "twelve million, seven hundred twenty-six thousand, forty".