3520740241 has 4 divisors (see below), whose sum is σ = 3521950132. Its totient is φ = 3519530352.

The previous prime is 3520740193. The next prime is 3520740247. The reversal of 3520740241 is 1420470253.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1420470253 = 59 ⋅24075767.

It can be written as a sum of positive squares in 2 ways, for example, as 3511155025 + 9585216 = 59255^2 + 3096^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3520740241 is a prime.

It is a super-2 number, since 2×3520740241² = 24791223689193476162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3520740247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600570 + ... + 606403.

It is an arithmetic number, because the mean of its divisors is an integer number (880487533).

Almost surely, 2^3520740241 is an apocalyptic number.

It is an amenable number.

3520740241 is a deficient number, since it is larger than the sum of its proper divisors (1209891).

3520740241 is a wasteful number, since it uses less digits than its factorization.

3520740241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209890.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 3520740241 is about 59335.8259485785. The cubic root of 3520740241 is about 1521.2876094569.

The spelling of 3520740241 in words is "three billion, five hundred twenty million, seven hundred forty thousand, two hundred forty-one".