2081320 has 32 divisors (see below), whose sum is σ = 4765320. Its totient is φ = 817920.

The previous prime is 2081311. The next prime is 2081323. The reversal of 2081320 is 231802.

2081320 = T₁₂₃ + T₁₂₄ + ... + T₂₄₂.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 538756 + 1542564 = 734^2 + 1242^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2081294 and 2081303.

It is not an unprimeable number, because it can be changed into a prime (2081323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2014 + ... + 2866.

2^2081320 is an apocalyptic number.

2081320 is a gapful number since it is divisible by the number (20) 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 2081320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2382660).

2081320 is an abundant number, since it is smaller than the sum of its proper divisors (2684000).

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

2081320 is a wasteful number, since it uses less digits than its factorization.

2081320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925 (or 921 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2081320 is about 1442.6780652661. The cubic root of 2081320 is about 127.6770831699.

It can be divided in two parts, 2081 and 320, that added together give a 4-th power (2401 = 7⁴).

The spelling of 2081320 in words is "two million, eighty-one thousand, three hundred twenty".