4407631616 has 72 divisors (see below), whose sum is σ = 9468862704. Its totient is φ = 2040053760.

The previous prime is 4407631573. The next prime is 4407631619. The reversal of 4407631616 is 6161367044.

It is a self number, because there is not a number n which added to its sum of digits gives 4407631616.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4407631619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257171 + ... + 273773.

It is an arithmetic number, because the mean of its divisors is an integer number (131511982).

Almost surely, 2^4407631616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4407631616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4734431352).

4407631616 is an abundant number, since it is smaller than the sum of its proper divisors (5061231088).

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

4407631616 is a wasteful number, since it uses less digits than its factorization.

4407631616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16697 (or 16683 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 4407631616 is about 66389.9963548726. The cubic root of 4407631616 is about 1639.5893796491.

The spelling of 4407631616 in words is "four billion, four hundred seven million, six hundred thirty-one thousand, six hundred sixteen".