3521343744 has 108 divisors (see below), whose sum is σ = 10344825036. Its totient is φ = 1151594496.

The previous prime is 3521343733. The next prime is 3521343757. The reversal of 3521343744 is 4473431253.

3521343744 is a `hidden beast` number, since 3 + 5 + 213 + 437 + 4 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2392383744 + 1128960000 = 48912^2 + 33600^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 3521343699 and 3521343708.

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 11 ways as a sum of consecutive naturals, for example, 107694 + ... + 136530.

It is an arithmetic number, because the mean of its divisors is an integer number (95785417).

Almost surely, 2^3521343744 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 3521343744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5172412518).

3521343744 is an abundant number, since it is smaller than the sum of its proper divisors (6823481292).

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

3521343744 is a wasteful number, since it uses less digits than its factorization.

3521343744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28912 (or 28895 counting only the distinct ones).

The product of its digits is 120960, while the sum is 36.

The square root of 3521343744 is about 59340.9112164618. The cubic root of 3521343744 is about 1521.3745276540.

Adding to 3521343744 its reverse (4473431253), we get a palindrome (7994774997).

The spelling of 3521343744 in words is "three billion, five hundred twenty-one million, three hundred forty-three thousand, seven hundred forty-four".