12404533 has 4 divisors (see below), whose sum is σ = 12607948. Its totient is φ = 12201120.

The previous prime is 12404531. The next prime is 12404537. The reversal of 12404533 is 33540421.

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 412164 + 11992369 = 642^2 + 3463^2 .

It is a cyclic number.

It is not a de Polignac number, because 12404533 - 2¹ = 12404531 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12404531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101616 + ... + 101737.

It is an arithmetic number, because the mean of its divisors is an integer number (3151987).

Almost surely, 2^12404533 is an apocalyptic number.

It is an amenable number.

12404533 is a deficient number, since it is larger than the sum of its proper divisors (203415).

12404533 is an equidigital number, since it uses as much as digits as its factorization.

12404533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203414.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 12404533 is about 3522.0069562680. The cubic root of 12404533 is about 231.4871064040.

Adding to 12404533 its reverse (33540421), we get a palindrome (45944954).

The spelling of 12404533 in words is "twelve million, four hundred four thousand, five hundred thirty-three".