12431416 has 8 divisors (see below), whose sum is σ = 23308920. Its totient is φ = 6215704.

The previous prime is 12431413. The next prime is 12431443. The reversal of 12431416 is 61413421.

12431416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12431411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776956 + ... + 776971.

It is an arithmetic number, because the mean of its divisors is an integer number (2913615).

Almost surely, 2^12431416 is an apocalyptic number.

It is an amenable number.

12431416 is a deficient number, since it is larger than the sum of its proper divisors (10877504).

12431416 is a wasteful number, since it uses less digits than its factorization.

12431416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553933 (or 1553929 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 12431416 is about 3525.8213227559. The cubic root of 12431416 is about 231.6542113852.

Adding to 12431416 its reverse (61413421), we get a palindrome (73844837).

The spelling of 12431416 in words is "twelve million, four hundred thirty-one thousand, four hundred sixteen".