2040638 has 16 divisors (see below), whose sum is σ = 3265920. Its totient is φ = 953496.

The previous prime is 2040607. The next prime is 2040641. The reversal of 2040638 is 8360402.

It is a happy number.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2831 + ... + 3477.

It is an arithmetic number, because the mean of its divisors is an integer number (204120).

2^2040638 is an apocalyptic number.

2040638 is a deficient number, since it is larger than the sum of its proper divisors (1225282).

2040638 is a wasteful number, since it uses less digits than its factorization.

2040638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2040638 is about 1428.5090129222. The cubic root of 2040638 is about 126.8397341865.

The spelling of 2040638 in words is "two million, forty thousand, six hundred thirty-eight".