2066243 has 4 divisors (see below), whose sum is σ = 2132928. Its totient is φ = 1999560.

The previous prime is 2066219. The next prime is 2066249. The reversal of 2066243 is 3426602.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2066243 - 2⁶ = 2066179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2066249) 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, 33296 + ... + 33357.

It is an arithmetic number, because the mean of its divisors is an integer number (533232).

2^2066243 is an apocalyptic number.

2066243 is a deficient number, since it is larger than the sum of its proper divisors (66685).

2066243 is an equidigital number, since it uses as much as digits as its factorization.

2066243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66684.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 2066243 is about 1437.4432162698. The cubic root of 2066243 is about 127.3680398132.

The spelling of 2066243 in words is "two million, sixty-six thousand, two hundred forty-three".