2945909 has 8 divisors (see below), whose sum is σ = 3091200. Its totient is φ = 2802096.

The previous prime is 2945869. The next prime is 2945933. The reversal of 2945909 is 9095492.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2945909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2945939) 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, 7844 + ... + 8210.

It is an arithmetic number, because the mean of its divisors is an integer number (386400).

2^2945909 is an apocalyptic number.

It is an amenable number.

2945909 is a deficient number, since it is larger than the sum of its proper divisors (145291).

2945909 is a wasteful number, since it uses less digits than its factorization.

2945909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 2945909 is about 1716.3650544100. The cubic root of 2945909 is about 143.3528865819.

The spelling of 2945909 in words is "two million, nine hundred forty-five thousand, nine hundred nine".