444140534 has 32 divisors (see below), whose sum is σ = 720728064. Its totient is φ = 204668640.

The previous prime is 444140533. The next prime is 444140549. The reversal of 444140534 is 435041444.

It is a junction number, because it is equal to n+sod(n) for n = 444140497 and 444140506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444140533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417287 + ... + 418349.

It is an arithmetic number, because the mean of its divisors is an integer number (22522752).

Almost surely, 2^444140534 is an apocalyptic number.

444140534 is a deficient number, since it is larger than the sum of its proper divisors (276587530).

444140534 is a wasteful number, since it uses less digits than its factorization.

444140534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412.

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 444140534 is about 21074.6419661165. The cubic root of 444140534 is about 762.9688433989.

Adding to 444140534 its reverse (435041444), we get a palindrome (879181978).

The spelling of 444140534 in words is "four hundred forty-four million, one hundred forty thousand, five hundred thirty-four".