2065818 has 16 divisors (see below), whose sum is σ = 4163040. Its totient is φ = 683376.

The previous prime is 2065807. The next prime is 2065829. The reversal of 2065818 is 8185602.

It is an interprime number because it is at equal distance from previous prime (2065807) and next prime (2065829).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 405 + ... + 2072.

It is an arithmetic number, because the mean of its divisors is an integer number (260190).

2^2065818 is an apocalyptic number.

2065818 is an abundant number, since it is smaller than the sum of its proper divisors (2097222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2065818 is a wasteful number, since it uses less digits than its factorization.

2065818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2621.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 2065818 is about 1437.2953767406. The cubic root of 2065818 is about 127.3593065505.

The spelling of 2065818 in words is "two million, sixty-five thousand, eight hundred eighteen".