3520161040 has 240 divisors, whose sum is σ = 9542139264. Its totient is φ = 1204346880.

The previous prime is 3520161031. The next prime is 3520161089. The reversal of 3520161040 is 401610253.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21595999 + ... + 21596161.

Almost surely, 2^3520161040 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 3520161040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4771069632).

3520161040 is an abundant number, since it is smaller than the sum of its proper divisors (6021978224).

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

3520161040 is a wasteful number, since it uses less digits than its factorization.

3520161040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318 (or 301 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 3520161040 is about 59330.9450455662. The cubic root of 3520161040 is about 1521.2041819608.

Adding to 3520161040 its reverse (401610253), we get a palindrome (3921771293).

The spelling of 3520161040 in words is "three billion, five hundred twenty million, one hundred sixty-one thousand, forty".