12426406 has 4 divisors (see below), whose sum is σ = 18639612. Its totient is φ = 6213202.

The previous prime is 12426389. The next prime is 12426409. The reversal of 12426406 is 60462421.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12426409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3106600 + ... + 3106603.

It is an arithmetic number, because the mean of its divisors is an integer number (4659903).

Almost surely, 2^12426406 is an apocalyptic number.

12426406 is a deficient number, since it is larger than the sum of its proper divisors (6213206).

12426406 is an equidigital number, since it uses as much as digits as its factorization.

12426406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6213205.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 12426406 is about 3525.1107784012. The cubic root of 12426406 is about 231.6230874557.

Adding to 12426406 its reverse (60462421), we get a palindrome (72888827).

The spelling of 12426406 in words is "twelve million, four hundred twenty-six thousand, four hundred six".