2105811448 has 16 divisors (see below), whose sum is σ = 4252119480. Its totient is φ = 971912928.

The previous prime is 2105811427. The next prime is 2105811473. The reversal of 2105811448 is 8441185012.

It is a happy number.

It is a super-3 number, since 3×2105811448³ (a number of 29 digits) contains 333 as substring.

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, 10123990 + ... + 10124197.

Almost surely, 2^2105811448 is an apocalyptic number.

It is an amenable number.

2105811448 is an abundant number, since it is smaller than the sum of its proper divisors (2146308032).

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

2105811448 is a wasteful number, since it uses less digits than its factorization.

2105811448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20248206 (or 20248202 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 34.

The square root of 2105811448 is about 45889.1212380451. The cubic root of 2105811448 is about 1281.7593498853.

The spelling of 2105811448 in words is "two billion, one hundred five million, eight hundred eleven thousand, four hundred forty-eight".