404432000442 has 12 divisors (see below), whose sum is σ = 876269334330. Its totient is φ = 134810666808.

The previous prime is 404432000429. The next prime is 404432000447. The reversal of 404432000442 is 244000234404.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 391651924041 + 12780076401 = 625821^2 + 113049^2 .

It is not an unprimeable number, because it can be changed into a prime (404432000447) 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 5 ways as a sum of consecutive naturals, for example, 11234222217 + ... + 11234222252.

Almost surely, 2^404432000442 is an apocalyptic number.

404432000442 is an abundant number, since it is smaller than the sum of its proper divisors (471837333888).

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

404432000442 is a wasteful number, since it uses less digits than its factorization.

404432000442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22468444477 (or 22468444474 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

Adding to 404432000442 its reverse (244000234404), we get a palindrome (648432234846).

The spelling of 404432000442 in words is "four hundred four billion, four hundred thirty-two million, four hundred forty-two", and thus it is an aban number.