12405430724 has 12 divisors (see below), whose sum is σ = 21726328848. Its totient is φ = 6197908200.

The previous prime is 12405430703. The next prime is 12405430729. The reversal of 12405430724 is 42703450421.

It is a super-2 number, since 2×12405430724² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12405430729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1195982 + ... + 1206309.

It is an arithmetic number, because the mean of its divisors is an integer number (1810527404).

Almost surely, 2^12405430724 is an apocalyptic number.

It is an amenable number.

12405430724 is a deficient number, since it is larger than the sum of its proper divisors (9320898124).

12405430724 is a wasteful number, since it uses less digits than its factorization.

12405430724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2403586 (or 2403584 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 32.

The spelling of 12405430724 in words is "twelve billion, four hundred five million, four hundred thirty thousand, seven hundred twenty-four".