12324200440 has 32 divisors (see below), whose sum is σ = 27766838880. Its totient is φ = 4923033472.

The previous prime is 12324200429. The next prime is 12324200503. The reversal of 12324200440 is 4400242321.

It is a happy number.

It is a super-3 number, since 3×12324200440³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177619 + ... + 237058.

It is an arithmetic number, because the mean of its divisors is an integer number (867713715).

Almost surely, 2^12324200440 is an apocalyptic number.

12324200440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12324200440 is an abundant number, since it is smaller than the sum of its proper divisors (15442638440).

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

12324200440 is a wasteful number, since it uses less digits than its factorization.

12324200440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415431 (or 415427 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 12324200440 its reverse (4400242321), we get a palindrome (16724442761).

The spelling of 12324200440 in words is "twelve billion, three hundred twenty-four million, two hundred thousand, four hundred forty".