12427434 has 24 divisors (see below), whose sum is σ = 27125280. Its totient is φ = 4111848.

The previous prime is 12427423. The next prime is 12427439. The reversal of 12427434 is 43472421.

12427434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12427434² = 308882231648712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12427398 and 12427407.

It is not an unprimeable number, because it can be changed into a prime (12427439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19 + ... + 4985.

It is an arithmetic number, because the mean of its divisors is an integer number (1130220).

Almost surely, 2^12427434 is an apocalyptic number.

12427434 is an abundant number, since it is smaller than the sum of its proper divisors (14697846).

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

12427434 is a wasteful number, since it uses less digits than its factorization.

12427434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5114 (or 5111 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 12427434 is about 3525.2565864062. The cubic root of 12427434 is about 231.6294744451.

Adding to 12427434 its reverse (43472421), we get a palindrome (55899855).

The spelling of 12427434 in words is "twelve million, four hundred twenty-seven thousand, four hundred thirty-four".