3520243445 has 8 divisors (see below), whose sum is σ = 4369957560. Its totient is φ = 2719084480.

The previous prime is 3520243439. The next prime is 3520243457. The reversal of 3520243445 is 5443420253.

It can be written as a sum of positive squares in 4 ways, for example, as 695746129 + 2824497316 = 26377^2 + 53146^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3520243445 - 2¹⁰ = 3520242421 is a prime.

It is a super-2 number, since 2×3520243445² = 24784227824130936050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12138626 + ... + 12138915.

It is an arithmetic number, because the mean of its divisors is an integer number (546244695).

Almost surely, 2^3520243445 is an apocalyptic number.

It is an amenable number.

3520243445 is a deficient number, since it is larger than the sum of its proper divisors (849714115).

3520243445 is a wasteful number, since it uses less digits than its factorization.

3520243445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24277575.

The product of its (nonzero) digits is 57600, while the sum is 32.

The square root of 3520243445 is about 59331.6394936125. The cubic root of 3520243445 is about 1521.2160520477.

Adding to 3520243445 its reverse (5443420253), we get a palindrome (8963663698).

The spelling of 3520243445 in words is "three billion, five hundred twenty million, two hundred forty-three thousand, four hundred forty-five".