2108638 has 8 divisors (see below), whose sum is σ = 3614832. Its totient is φ = 903696.

The previous prime is 2108627. The next prime is 2108641. The reversal of 2108638 is 8368012.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75295 + ... + 75322.

It is an arithmetic number, because the mean of its divisors is an integer number (451854).

2^2108638 is an apocalyptic number.

2108638 is a deficient number, since it is larger than the sum of its proper divisors (1506194).

2108638 is a wasteful number, since it uses less digits than its factorization.

2108638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150626.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 2108638 is about 1452.1150092193. The cubic root of 2108638 is about 128.2332579376.

The spelling of 2108638 in words is "two million, one hundred eight thousand, six hundred thirty-eight".