12426880 has 32 divisors (see below), whose sum is σ = 29709540. Its totient is φ = 4970496.

The previous prime is 12426853. The next prime is 12426889. The reversal of 12426880 is 8862421.

12426880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10188864 + 2238016 = 3192^2 + 1496^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (12426889) 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, 9069 + ... + 10348.

Almost surely, 2^12426880 is an apocalyptic number.

12426880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12426880 is an abundant number, since it is smaller than the sum of its proper divisors (17282660).

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

12426880 is an equidigital number, since it uses as much as digits as its factorization.

12426880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19436 (or 19424 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 12426880 is about 3525.1780096897. The cubic root of 12426880 is about 231.6260324732.

The spelling of 12426880 in words is "twelve million, four hundred twenty-six thousand, eight hundred eighty".