12344431404 has 48 divisors (see below), whose sum is σ = 30505758080. Its totient is φ = 3874314240.

The previous prime is 12344431403. The next prime is 12344431487. The reversal of 12344431404 is 40413444321.

It is a super-2 number, since 2×12344431404² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12344431403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128917 + ... + 203244.

Almost surely, 2^12344431404 is an apocalyptic number.

It is an amenable number.

12344431404 is an abundant number, since it is smaller than the sum of its proper divisors (18161326676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12344431404 is a wasteful number, since it uses less digits than its factorization.

12344431404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332350 (or 332348 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 12344431404 its reverse (40413444321), we get a palindrome (52757875725).

The spelling of 12344431404 in words is "twelve billion, three hundred forty-four million, four hundred thirty-one thousand, four hundred four".