2105634 has 16 divisors (see below), whose sum is σ = 4239072. Its totient is φ = 697248.

The previous prime is 2105611. The next prime is 2105641. The reversal of 2105634 is 4365012.

It is a happy number.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 2105634.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99 + ... + 2054.

It is an arithmetic number, because the mean of its divisors is an integer number (264942).

2^2105634 is an apocalyptic number.

2105634 is an abundant number, since it is smaller than the sum of its proper divisors (2133438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2105634 is a wasteful number, since it uses less digits than its factorization.

2105634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2321.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2105634 is about 1451.0802872343. The cubic root of 2105634 is about 128.1723346025.

The spelling of 2105634 in words is "two million, one hundred five thousand, six hundred thirty-four".