3520516736 has 64 divisors (see below), whose sum is σ = 7898031360. Its totient is φ = 1548595200.

The previous prime is 3520516733. The next prime is 3520516759. The reversal of 3520516736 is 6376150253.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 3520516736.

It is not an unprimeable number, because it can be changed into a prime (3520516733) 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, 3320 + ... + 83976.

It is an arithmetic number, because the mean of its divisors is an integer number (123406740).

Almost surely, 2^3520516736 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 3520516736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3949015680).

3520516736 is an abundant number, since it is smaller than the sum of its proper divisors (4377514624).

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

3520516736 is a wasteful number, since it uses less digits than its factorization.

3520516736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80713 (or 80701 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 38.

The square root of 3520516736 is about 59333.9425287078. The cubic root of 3520516736 is about 1521.2554171186.

Adding to 3520516736 its reverse (6376150253), we get a palindrome (9896666989).

The spelling of 3520516736 in words is "three billion, five hundred twenty million, five hundred sixteen thousand, seven hundred thirty-six".