2040667 has 4 divisors (see below), whose sum is σ = 2058840. Its totient is φ = 2022496.

The previous prime is 2040653. The next prime is 2040679. The reversal of 2040667 is 7660402.

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 2040667 - 2⁷ = 2040539 is a prime.

It is a Duffinian number.

2040667 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2040607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8917 + ... + 9142.

It is an arithmetic number, because the mean of its divisors is an integer number (514710).

2^2040667 is an apocalyptic number.

2040667 is a deficient number, since it is larger than the sum of its proper divisors (18173).

2040667 is a wasteful number, since it uses less digits than its factorization.

2040667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18172.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 2040667 is about 1428.5191633296. The cubic root of 2040667 is about 126.8403350337.

The spelling of 2040667 in words is "two million, forty thousand, six hundred sixty-seven".