2105422128 has 60 divisors (see below), whose sum is σ = 5915288808. Its totient is φ = 699064320.

The previous prime is 2105422117. The next prime is 2105422141. The reversal of 2105422128 is 8212245012.

2105422128 is a `hidden beast` number, since 210 + 5 + 422 + 1 + 28 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8563 + ... + 65453.

Almost surely, 2^2105422128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2105422128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2957644404).

2105422128 is an abundant number, since it is smaller than the sum of its proper divisors (3809866680).

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

2105422128 is a wasteful number, since it uses less digits than its factorization.

2105422128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57162 (or 57153 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 2105422128 is about 45884.8790779708. The cubic root of 2105422128 is about 1281.6803549518.

The spelling of 2105422128 in words is "two billion, one hundred five million, four hundred twenty-two thousand, one hundred twenty-eight".