3559664240 has 80 divisors (see below), whose sum is σ = 9074419200. Its totient is φ = 1287855360.

The previous prime is 3559664237. The next prime is 3559664261. The reversal of 3559664240 is 424669553.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 3559664191 and 3559664200.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 164957 + ... + 185283.

It is an arithmetic number, because the mean of its divisors is an integer number (113430240).

Almost surely, 2^3559664240 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 3559664240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4537209600).

3559664240 is an abundant number, since it is smaller than the sum of its proper divisors (5514754960).

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

3559664240 is a wasteful number, since it uses less digits than its factorization.

3559664240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20550 (or 20544 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 44.

The square root of 3559664240 is about 59662.9218191667. The cubic root of 3559664240 is about 1526.8733391272.

The spelling of 3559664240 in words is "three billion, five hundred fifty-nine million, six hundred sixty-four thousand, two hundred forty".