3045405 has 16 divisors (see below), whose sum is σ = 5315904. Its totient is φ = 1476480.

The previous prime is 3045379. The next prime is 3045421. The reversal of 3045405 is 5045403.

It is a happy number.

It is not a de Polignac number, because 3045405 - 2⁹ = 3044893 is a prime.

It is a super-2 number, since 2×3045405² = 18548983228050, 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 15 ways as a sum of consecutive naturals, for example, 9064 + ... + 9393.

It is an arithmetic number, because the mean of its divisors is an integer number (332244).

Almost surely, 2^3045405 is an apocalyptic number.

It is an amenable number.

3045405 is a deficient number, since it is larger than the sum of its proper divisors (2270499).

3045405 is a wasteful number, since it uses less digits than its factorization.

3045405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18476.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 3045405 is about 1745.1088791247. The cubic root of 3045405 is about 144.9489316792.

The spelling of 3045405 in words is "three million, forty-five thousand, four hundred five".