2040555 has 32 divisors (see below), whose sum is σ = 3628800. Its totient is φ = 970880.

The previous prime is 2040551. The next prime is 2040557. The reversal of 2040555 is 5550402.

It is not a de Polignac number, because 2040555 - 2² = 2040551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2040551) 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 31 ways as a sum of consecutive naturals, for example, 13621 + ... + 13769.

It is an arithmetic number, because the mean of its divisors is an integer number (113400).

2^2040555 is an apocalyptic number.

2040555 is a deficient number, since it is larger than the sum of its proper divisors (1588245).

2040555 is a wasteful number, since it uses less digits than its factorization.

2040555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251.

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 2040555 is about 1428.4799613575. The cubic root of 2040555 is about 126.8380144889.

Adding to 2040555 its reverse (5550402), we get a palindrome (7590957).

The spelling of 2040555 in words is "two million, forty thousand, five hundred fifty-five".