12403430 has 32 divisors (see below), whose sum is σ = 24391584. Its totient is φ = 4513536.

The previous prime is 12403423. The next prime is 12403439. The reversal of 12403430 is 3430421.

It is a junction number, because it is equal to n+sod(n) for n = 12403399 and 12403408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12403439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8837 + ... + 10143.

It is an arithmetic number, because the mean of its divisors is an integer number (762237).

Almost surely, 2^12403430 is an apocalyptic number.

12403430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12403430 is a deficient number, since it is larger than the sum of its proper divisors (11988154).

12403430 is a wasteful number, since it uses less digits than its factorization.

12403430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 12403430 is about 3521.8503659298. The cubic root of 12403430 is about 231.4802449917.

Adding to 12403430 its reverse (3430421), we get a palindrome (15833851).

The spelling of 12403430 in words is "twelve million, four hundred three thousand, four hundred thirty".