2638115 has 4 divisors (see below), whose sum is σ = 3165744. Its totient is φ = 2110488.

The previous prime is 2638087. The next prime is 2638177. The reversal of 2638115 is 5118362.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5118362 = 2 ⋅2559181.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2638115 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263807 + ... + 263816.

It is an arithmetic number, because the mean of its divisors is an integer number (791436).

2^2638115 is an apocalyptic number.

2638115 is a deficient number, since it is larger than the sum of its proper divisors (527629).

2638115 is an equidigital number, since it uses as much as digits as its factorization.

2638115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527628.

The product of its digits is 1440, while the sum is 26.

The square root of 2638115 is about 1624.2275086945. The cubic root of 2638115 is about 138.1755624555.

The spelling of 2638115 in words is "two million, six hundred thirty-eight thousand, one hundred fifteen".