12409634 has 8 divisors (see below), whose sum is σ = 19068588. Its totient is φ = 6053440.

The previous prime is 12409619. The next prime is 12409637. The reversal of 12409634 is 43690421.

It can be written as a sum of positive squares in 2 ways, for example, as 12285025 + 124609 = 3505^2 + 353^2 .

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 = 12409597 and 12409606.

It is not an unprimeable number, because it can be changed into a prime (12409637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75587 + ... + 75750.

Almost surely, 2^12409634 is an apocalyptic number.

12409634 is a deficient number, since it is larger than the sum of its proper divisors (6658954).

12409634 is a wasteful number, since it uses less digits than its factorization.

12409634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151380.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 12409634 is about 3522.7310428132. The cubic root of 12409634 is about 231.5188328143.

The spelling of 12409634 in words is "twelve million, four hundred nine thousand, six hundred thirty-four".