12430256 has 40 divisors (see below), whose sum is σ = 26188800. Its totient is φ = 5693760.

The previous prime is 12430219. The next prime is 12430267. The reversal of 12430256 is 65203421.

It is a super-2 number, since 2×12430256² = 309022528451072, which contains 22 as substring.

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, 8765 + ... + 10083.

It is an arithmetic number, because the mean of its divisors is an integer number (654720).

Almost surely, 2^12430256 is an apocalyptic number.

12430256 is a gapful number since it is divisible by the number (16) 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 12430256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13094400).

12430256 is an abundant number, since it is smaller than the sum of its proper divisors (13758544).

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

12430256 is a wasteful number, since it uses less digits than its factorization.

12430256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377 (or 1371 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 12430256 is about 3525.6568182397. The cubic root of 12430256 is about 231.6470057903.

Adding to 12430256 its reverse (65203421), we get a palindrome (77633677).

The spelling of 12430256 in words is "twelve million, four hundred thirty thousand, two hundred fifty-six".