4391565416 has 24 divisors (see below), whose sum is σ = 9578542770. Its totient is φ = 1882099296.

The previous prime is 4391565413. The next prime is 4391565427. The reversal of 4391565416 is 6145651934.

It can be written as a sum of positive squares in only one way, i.e., 4228900900 + 162664516 = 65030^2 + 12754^2 .

It is not an unprimeable number, because it can be changed into a prime (4391565413) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5601095 + ... + 5601878.

Almost surely, 2^4391565416 is an apocalyptic number.

It is an amenable number.

4391565416 is an abundant number, since it is smaller than the sum of its proper divisors (5186977354).

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

4391565416 is a wasteful number, since it uses less digits than its factorization.

4391565416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11202993 (or 11202982 counting only the distinct ones).

The product of its digits is 388800, while the sum is 44.

The square root of 4391565416 is about 66268.8872397900. The cubic root of 4391565416 is about 1637.5948056603.

The spelling of 4391565416 in words is "four billion, three hundred ninety-one million, five hundred sixty-five thousand, four hundred sixteen".