12824401 has 4 divisors (see below), whose sum is σ = 12836592. Its totient is φ = 12812212.

The previous prime is 12824389. The next prime is 12824447. The reversal of 12824401 is 10442821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10442821 = 67 ⋅155863.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12824401 is a prime.

It is a super-2 number, since 2×12824401² = 328930522017602, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12824491) 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, 4351 + ... + 6676.

It is an arithmetic number, because the mean of its divisors is an integer number (3209148).

Almost surely, 2^12824401 is an apocalyptic number.

It is an amenable number.

12824401 is a deficient number, since it is larger than the sum of its proper divisors (12191).

12824401 is a wasteful number, since it uses less digits than its factorization.

12824401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12190.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 12824401 is about 3581.1172837538. The cubic root of 12824401 is about 234.0699683625.

It can be divided in two parts, 12824 and 401, that added together give a square (13225 = 115²).

The spelling of 12824401 in words is "twelve million, eight hundred twenty-four thousand, four hundred one".