12591426 has 16 divisors (see below), whose sum is σ = 25610400. Its totient is φ = 4125888.

The previous prime is 12591421. The next prime is 12591427. The reversal of 12591426 is 62419521.

It is a junction number, because it is equal to n+sod(n) for n = 12591393 and 12591402.

It is not an unprimeable number, because it can be changed into a prime (12591421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17431 + ... + 18138.

It is an arithmetic number, because the mean of its divisors is an integer number (1600650).

Almost surely, 2^12591426 is an apocalyptic number.

12591426 is an abundant number, since it is smaller than the sum of its proper divisors (13018974).

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

12591426 is a wasteful number, since it uses less digits than its factorization.

12591426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35633.

The product of its digits is 4320, while the sum is 30.

The square root of 12591426 is about 3548.4399389027. The cubic root of 12591426 is about 232.6438836522.

The spelling of 12591426 in words is "twelve million, five hundred ninety-one thousand, four hundred twenty-six".