2868638 has 8 divisors (see below), whose sum is σ = 4336200. Its totient is φ = 1423240.

The previous prime is 2868617. The next prime is 2868673. The reversal of 2868638 is 8368682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2868595 and 2868604.

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 3 ways as a sum of consecutive naturals, for example, 5213 + ... + 5736.

It is an arithmetic number, because the mean of its divisors is an integer number (542025).

2^2868638 is an apocalyptic number.

2868638 is a deficient number, since it is larger than the sum of its proper divisors (1467562).

2868638 is a wasteful number, since it uses less digits than its factorization.

2868638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11082.

The product of its digits is 110592, while the sum is 41.

The square root of 2868638 is about 1693.7054053170. The cubic root of 2868638 is about 142.0883864202.

The spelling of 2868638 in words is "two million, eight hundred sixty-eight thousand, six hundred thirty-eight".