3003445 has 4 divisors (see below), whose sum is σ = 3604140. Its totient is φ = 2402752.

The previous prime is 3003433. The next prime is 3003449. The reversal of 3003445 is 5443003.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5443003 = 257 ⋅21179.

It can be written as a sum of positive squares in 2 ways, for example, as 2377764 + 625681 = 1542^2 + 791^2 .

It is a cyclic number.

It is not a de Polignac number, because 3003445 - 2⁹ = 3002933 is a prime.

3003445 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3003449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300340 + ... + 300349.

It is an arithmetic number, because the mean of its divisors is an integer number (901035).

Almost surely, 2^3003445 is an apocalyptic number.

It is an amenable number.

3003445 is a deficient number, since it is larger than the sum of its proper divisors (600695).

3003445 is an equidigital number, since it uses as much as digits as its factorization.

3003445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600694.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 3003445 is about 1733.0450080711. The cubic root of 3003445 is about 144.2801420211.

Adding to 3003445 its reverse (5443003), we get a palindrome (8446448).

The spelling of 3003445 in words is "three million, three thousand, four hundred forty-five".