12431434 has 32 divisors (see below), whose sum is σ = 20712960. Its totient is φ = 5572800.

The previous prime is 12431413. The next prime is 12431443. The reversal of 12431434 is 43413421.

12431434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71772 + ... + 71944.

It is an arithmetic number, because the mean of its divisors is an integer number (647280).

Almost surely, 2^12431434 is an apocalyptic number.

12431434 is a deficient number, since it is larger than the sum of its proper divisors (8281526).

12431434 is a wasteful number, since it uses less digits than its factorization.

12431434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286.

The product of its digits is 1152, while the sum is 22.

The square root of 12431434 is about 3525.8238753517. The cubic root of 12431434 is about 231.6543231926.

Adding to 12431434 its reverse (43413421), we get a palindrome (55844855).

The spelling of 12431434 in words is "twelve million, four hundred thirty-one thousand, four hundred thirty-four".