2081171424 has 96 divisors (see below), whose sum is σ = 5525936640. Its totient is φ = 685798400.

The previous prime is 2081171371. The next prime is 2081171429. The reversal of 2081171424 is 4241711802.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 2081171391 and 2081171400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081171429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4828489 + ... + 4828919.

It is an arithmetic number, because the mean of its divisors is an integer number (57561840).

Almost surely, 2^2081171424 is an apocalyptic number.

2081171424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2081171424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2762968320).

2081171424 is an abundant number, since it is smaller than the sum of its proper divisors (3444765216).

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

2081171424 is a wasteful number, since it uses less digits than its factorization.

2081171424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904 (or 896 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 2081171424 is about 45619.8577814530. The cubic root of 2081171424 is about 1276.7404500150.

It can be divided in two parts, 20811 and 71424, that added together give a triangular number (92235 = T₄₂₉).

The spelling of 2081171424 in words is "two billion, eighty-one million, one hundred seventy-one thousand, four hundred twenty-four".