4440631616 has 14 divisors (see below), whose sum is σ = 8811878490. Its totient is φ = 2220315776.

The previous prime is 4440631609. The next prime is 4440631619. The reversal of 4440631616 is 6161360444.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4159734016 + 280897600 = 64496^2 + 16760^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4440631619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34692371 + ... + 34692498.

Almost surely, 2^4440631616 is an apocalyptic number.

It is an amenable number.

4440631616 is a deficient number, since it is larger than the sum of its proper divisors (4371246874).

4440631616 is an equidigital number, since it uses as much as digits as its factorization.

4440631616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69384881 (or 69384871 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 4440631616 is about 66638.0643176256. The cubic root of 4440631616 is about 1643.6710861969.

It can be divided in two parts, 4440 and 631616, that added together give a cube (636056 = 86³).

The spelling of 4440631616 in words is "four billion, four hundred forty million, six hundred thirty-one thousand, six hundred sixteen".