444140432 has 10 divisors (see below), whose sum is σ = 860522118. Its totient is φ = 222070208.

The previous prime is 444140407. The next prime is 444140443. The reversal of 444140432 is 234041444.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 442849936 + 1290496 = 21044^2 + 1136^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13879373 + ... + 13879404.

Almost surely, 2^444140432 is an apocalyptic number.

It is an amenable number.

444140432 is a deficient number, since it is larger than the sum of its proper divisors (416381686).

444140432 is a wasteful number, since it uses less digits than its factorization.

444140432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27758785 (or 27758779 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 444140432 is about 21074.6395461465. The cubic root of 444140432 is about 762.9687849918.

Adding to 444140432 its reverse (234041444), we get a palindrome (678181876).

The spelling of 444140432 in words is "four hundred forty-four million, one hundred forty thousand, four hundred thirty-two".