12404331 has 12 divisors (see below), whose sum is σ = 17950608. Its totient is φ = 8254224.

The previous prime is 12404311. The next prime is 12404333. The reversal of 12404331 is 13340421.

12404331 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12404331 - 2⁵ = 12404299 is a prime.

It is a super-2 number, since 2×12404331² = 307734855115122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12404333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6066 + ... + 7848.

It is an arithmetic number, because the mean of its divisors is an integer number (1495884).

Almost surely, 2^12404331 is an apocalyptic number.

12404331 is a deficient number, since it is larger than the sum of its proper divisors (5546277).

12404331 is a wasteful number, since it uses less digits than its factorization.

12404331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2562 (or 2559 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 12404331 is about 3521.9782793197. The cubic root of 12404331 is about 231.4858498567.

Adding to 12404331 its reverse (13340421), we get a palindrome (25744752).

The spelling of 12404331 in words is "twelve million, four hundred four thousand, three hundred thirty-one".