12432044400 has 120 divisors (see below), whose sum is σ = 40900452144. Its totient is φ = 3225600000.

The previous prime is 12432044381. The next prime is 12432044419. The reversal of 12432044400 is 444023421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12432044381) and next prime (12432044419).

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95601 + ... + 184400.

Almost surely, 2^12432044400 is an apocalyptic number.

12432044400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12432044400 is an abundant number, since it is smaller than the sum of its proper divisors (28468407744).

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

12432044400 is a wasteful number, since it uses less digits than its factorization.

12432044400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280059 (or 280048 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 12432044400 its reverse (444023421), we get a palindrome (12876067821).

The spelling of 12432044400 in words is "twelve billion, four hundred thirty-two million, forty-four thousand, four hundred".