1044400420432 has 20 divisors (see below), whose sum is σ = 2024280100480. Its totient is φ = 522005555808.

The previous prime is 1044400420379. The next prime is 1044400420447. The reversal of 1044400420432 is 2340240044401.

It is a self number, because there is not a number n which added to its sum of digits gives 1044400420432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12121632 + ... + 12207487.

It is an arithmetic number, because the mean of its divisors is an integer number (101214005024).

Almost surely, 2^{1044400420432} is an apocalyptic number.

It is an amenable number.

1044400420432 is a deficient number, since it is larger than the sum of its proper divisors (979879680048).

1044400420432 is a wasteful number, since it uses less digits than its factorization.

1044400420432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24331810 (or 24331804 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 1044400420432 its reverse (2340240044401), we get a palindrome (3384640464833).

The spelling of 1044400420432 in words is "one trillion, forty-four billion, four hundred million, four hundred twenty thousand, four hundred thirty-two".