3301440643 has 4 divisors (see below), whose sum is σ = 3301660440. Its totient is φ = 3301220848.

The previous prime is 3301440629. The next prime is 3301440689. The reversal of 3301440643 is 3460441033.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3301440643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3301443643) 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, 85573 + ... + 118006.

It is an arithmetic number, because the mean of its divisors is an integer number (825415110).

Almost surely, 2^3301440643 is an apocalyptic number.

3301440643 is a deficient number, since it is larger than the sum of its proper divisors (219797).

3301440643 is a wasteful number, since it uses less digits than its factorization.

3301440643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219796.

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 3301440643 is about 57458.1642849822. The cubic root of 3301440643 is about 1489.0221716668.

Adding to 3301440643 its reverse (3460441033), we get a palindrome (6761881676).

The spelling of 3301440643 in words is "three billion, three hundred one million, four hundred forty thousand, six hundred forty-three".