2040005 has 16 divisors (see below), whose sum is σ = 2764800. Its totient is φ = 1431360.

The previous prime is 2039993. The next prime is 2040019. The reversal of 2040005 is 5000402.

It is not a de Polignac number, because 2040005 - 2¹⁴ = 2023621 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (11).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 956 + ... + 2234.

It is an arithmetic number, because the mean of its divisors is an integer number (172800).

2^2040005 is an apocalyptic number.

It is an amenable number.

2040005 is a deficient number, since it is larger than the sum of its proper divisors (724795).

2040005 is a wasteful number, since it uses less digits than its factorization.

2040005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324.

The product of its (nonzero) digits is 40, while the sum is 11.

The square root of 2040005 is about 1428.2874360576. The cubic root of 2040005 is about 126.8266177240.

Adding to 2040005 its reverse (5000402), we get a palindrome (7040407).

The spelling of 2040005 in words is "two million, forty thousand, five".