2331638 has 4 divisors (see below), whose sum is σ = 3497460. Its totient is φ = 1165818.

The previous prime is 2331613. The next prime is 2331647. The reversal of 2331638 is 8361332.

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

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 as a sum of consecutive naturals, namely, 582908 + ... + 582911.

It is an arithmetic number, because the mean of its divisors is an integer number (874365).

2^2331638 is an apocalyptic number.

2331638 is a deficient number, since it is larger than the sum of its proper divisors (1165822).

2331638 is a wasteful number, since it uses less digits than its factorization.

2331638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165821.

The product of its digits is 2592, while the sum is 26.

The square root of 2331638 is about 1526.9702027217. The cubic root of 2331638 is about 132.6031094882.

The spelling of 2331638 in words is "two million, three hundred thirty-one thousand, six hundred thirty-eight".