2945866 has 48 divisors (see below), whose sum is σ = 5822208. Its totient is φ = 1092960.

The previous prime is 2945857. The next prime is 2945869. The reversal of 2945866 is 6685492.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2945869) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62655 + ... + 62701.

It is an arithmetic number, because the mean of its divisors is an integer number (121296).

2^2945866 is an apocalyptic number.

2945866 is a deficient number, since it is larger than the sum of its proper divisors (2876342).

2945866 is a wasteful number, since it uses less digits than its factorization.

2945866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115 (or 104 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 2945866 is about 1716.3525278916. The cubic root of 2945866 is about 143.3521890944.

The spelling of 2945866 in words is "two million, nine hundred forty-five thousand, eight hundred sixty-six".