12455430 has 64 divisors (see below), whose sum is σ = 32598720. Its totient is φ = 3027456.

The previous prime is 12455419. The next prime is 12455449. The reversal of 12455430 is 3455421.

It is a self number, because there is not a number n which added to its sum of digits gives 12455430.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42364 + ... + 42656.

It is an arithmetic number, because the mean of its divisors is an integer number (509355).

Almost surely, 2^12455430 is an apocalyptic number.

12455430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12455430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16299360).

12455430 is an abundant number, since it is smaller than the sum of its proper divisors (20143290).

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

12455430 is a wasteful number, since it uses less digits than its factorization.

12455430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 12455430 is about 3529.2251274182. The cubic root of 12455430 is about 231.8032790392.

Subtracting from 12455430 its reverse (3455421), we obtain a palindrome (9000009).

The spelling of 12455430 in words is "twelve million, four hundred fifty-five thousand, four hundred thirty".