12402829 has 4 divisors (see below), whose sum is σ = 12423676. Its totient is φ = 12381984.

The previous prime is 12402811. The next prime is 12402853. The reversal of 12402829 is 92820421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2175625 + 10227204 = 1475^2 + 3198^2 .

It is a cyclic number.

It is not a de Polignac number, because 12402829 - 2¹⁷ = 12271757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12402797 and 12402806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12405829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9504 + ... + 10729.

It is an arithmetic number, because the mean of its divisors is an integer number (3105919).

Almost surely, 2^12402829 is an apocalyptic number.

It is an amenable number.

12402829 is a deficient number, since it is larger than the sum of its proper divisors (20847).

12402829 is an equidigital number, since it uses as much as digits as its factorization.

12402829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20846.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 12402829 is about 3521.7650404307. The cubic root of 12402829 is about 231.4765061906.

It can be divided in two parts, 12402 and 829, that added together give a palindrome (13231).

The spelling of 12402829 in words is "twelve million, four hundred two thousand, eight hundred twenty-nine".