12812434 has 8 divisors (see below), whose sum is σ = 19738188. Its totient is φ = 6233040.

The previous prime is 12812419. The next prime is 12812473. The reversal of 12812434 is 43421821.

It can be written as a sum of positive squares in 2 ways, for example, as 10400625 + 2411809 = 3225^2 + 1553^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12812399 and 12812408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86497 + ... + 86644.

Almost surely, 2^12812434 is an apocalyptic number.

12812434 is a deficient number, since it is larger than the sum of its proper divisors (6925754).

12812434 is a wasteful number, since it uses less digits than its factorization.

12812434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173180.

The product of its digits is 1536, while the sum is 25.

The square root of 12812434 is about 3579.4460465273. The cubic root of 12812434 is about 233.9971387869.

The spelling of 12812434 in words is "twelve million, eight hundred twelve thousand, four hundred thirty-four".