3520432643 has 8 divisors (see below), whose sum is σ = 4332840288. Its totient is φ = 2785397184.

The previous prime is 3520432637. The next prime is 3520432667. The reversal of 3520432643 is 3462340253.

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

It is a cyclic number.

It is not a de Polignac number, because 3520432643 - 2¹⁰ = 3520431619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3520432603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19342946 + ... + 19343127.

It is an arithmetic number, because the mean of its divisors is an integer number (541605036).

Almost surely, 2^3520432643 is an apocalyptic number.

3520432643 is a deficient number, since it is larger than the sum of its proper divisors (812407645).

3520432643 is a wasteful number, since it uses less digits than its factorization.

3520432643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38686093.

The product of its (nonzero) digits is 51840, while the sum is 32.

The square root of 3520432643 is about 59333.2338828755. The cubic root of 3520432643 is about 1521.2433045075.

Adding to 3520432643 its reverse (3462340253), we get a palindrome (6982772896).

The spelling of 3520432643 in words is "three billion, five hundred twenty million, four hundred thirty-two thousand, six hundred forty-three".