12403434 has 16 divisors (see below), whose sum is σ = 24847200. Its totient is φ = 4127760.

The previous prime is 12403423. The next prime is 12403439. The reversal of 12403434 is 43430421.

It is a self number, because there is not a number n which added to its sum of digits gives 12403434.

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 7 ways as a sum of consecutive naturals, for example, 3592 + ... + 6140.

It is an arithmetic number, because the mean of its divisors is an integer number (1552950).

Almost surely, 2^12403434 is an apocalyptic number.

12403434 is an abundant number, since it is smaller than the sum of its proper divisors (12443766).

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

12403434 is a wasteful number, since it uses less digits than its factorization.

12403434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3365.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 12403434 is about 3521.8509338131. The cubic root of 12403434 is about 231.4802698752.

Adding to 12403434 its reverse (43430421), we get a palindrome (55833855).

The spelling of 12403434 in words is "twelve million, four hundred three thousand, four hundred thirty-four".