12345434 has 16 divisors (see below), whose sum is σ = 20461248. Its totient is φ = 5556672.

The previous prime is 12345433. The next prime is 12345439. The reversal of 12345434 is 43454321.

12345434 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12345433) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7112 + ... + 8675.

It is an arithmetic number, because the mean of its divisors is an integer number (1278828).

Almost surely, 2^12345434 is an apocalyptic number.

12345434 is a deficient number, since it is larger than the sum of its proper divisors (8115814).

12345434 is a wasteful number, since it uses less digits than its factorization.

12345434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15829.

The product of its digits is 5760, while the sum is 26.

The square root of 12345434 is about 3513.6069785905. The cubic root of 12345434 is about 231.1188958348.

Adding to 12345434 its reverse (43454321), we get a palindrome (55799755).

The spelling of 12345434 in words is "twelve million, three hundred forty-five thousand, four hundred thirty-four".