3330561 has 32 divisors (see below), whose sum is σ = 5160960. Its totient is φ = 1894464.

The previous prime is 3330557. The next prime is 3330577. The reversal of 3330561 is 1650333.

It is not a de Polignac number, because 3330561 - 2² = 3330557 is a prime.

It is a super-2 number, since 2×3330561² = 22185273149442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3330511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42120 + ... + 42198.

It is an arithmetic number, because the mean of its divisors is an integer number (161280).

Almost surely, 2^3330561 is an apocalyptic number.

It is an amenable number.

3330561 is a deficient number, since it is larger than the sum of its proper divisors (1830399).

3330561 is a wasteful number, since it uses less digits than its factorization.

3330561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165.

The product of its (nonzero) digits is 810, while the sum is 21.

The square root of 3330561 is about 1824.9824656692. The cubic root of 3330561 is about 149.3387335730.

Adding to 3330561 its reverse (1650333), we get a palindrome (4980894).

The spelling of 3330561 in words is "three million, three hundred thirty thousand, five hundred sixty-one".