12400030432 has 12 divisors (see below), whose sum is σ = 24412559976. Its totient is φ = 6200015200.

The previous prime is 12400030417. The next prime is 12400030459. The reversal of 12400030432 is 23403000421.

It is a super-2 number, since 2×12400030432² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193750444 + ... + 193750507.

It is an arithmetic number, because the mean of its divisors is an integer number (2034379998).

Almost surely, 2^12400030432 is an apocalyptic number.

It is an amenable number.

12400030432 is a deficient number, since it is larger than the sum of its proper divisors (12012529544).

12400030432 is an equidigital number, since it uses as much as digits as its factorization.

12400030432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387500961 (or 387500953 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 12400030432 its reverse (23403000421), we get a palindrome (35803030853).

The spelling of 12400030432 in words is "twelve billion, four hundred million, thirty thousand, four hundred thirty-two".