3520000445 has 30 divisors (see below), whose sum is σ = 4605320322. Its totient is φ = 2582828352.

The previous prime is 3520000417. The next prime is 3520000447. The reversal of 3520000445 is 5440000253.

It can be written as a sum of positive squares in 15 ways, for example, as 2153145604 + 1366854841 = 46402^2 + 36971^2 .

It is not a de Polignac number, because 3520000445 - 2⁶ = 3520000381 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3520000445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3520000447) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 22420307 + ... + 22420463.

Almost surely, 2^3520000445 is an apocalyptic number.

It is an amenable number.

3520000445 is a deficient number, since it is larger than the sum of its proper divisors (1085319877).

3520000445 is an frugal number, since it uses more digits than its factorization.

3520000445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 3520000445 is about 59329.5916470019. The cubic root of 3520000445 is about 1521.1810484074.

Adding to 3520000445 its reverse (5440000253), we get a palindrome (8960000698).

The spelling of 3520000445 in words is "three billion, five hundred twenty million, four hundred forty-five", and thus it is an aban number.