12426456 has 128 divisors (see below), whose sum is σ = 39744000. Its totient is φ = 3151872.

The previous prime is 12426431. The next prime is 12426481. The reversal of 12426456 is 65462421.

It is an interprime number because it is at equal distance from previous prime (12426431) and next prime (12426481).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54150 + ... + 54378.

It is an arithmetic number, because the mean of its divisors is an integer number (310500).

Almost surely, 2^12426456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12426456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19872000).

12426456 is an abundant number, since it is smaller than the sum of its proper divisors (27317544).

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

12426456 is a wasteful number, since it uses less digits than its factorization.

12426456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281 (or 277 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 12426456 is about 3525.1178703697. The cubic root of 12426456 is about 231.6233981151.

Adding to 12426456 its reverse (65462421), we get a palindrome (77888877).

The spelling of 12426456 in words is "twelve million, four hundred twenty-six thousand, four hundred fifty-six".