2081610 has 48 divisors (see below), whose sum is σ = 5489640. Its totient is φ = 547200.

The previous prime is 2081609. The next prime is 2081617. The reversal of 2081610 is 161802.

It can be written as a sum of positive squares in 4 ways, for example, as 2064969 + 16641 = 1437^2 + 129^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2081617) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8976 + ... + 9204.

2^2081610 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2081610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2744820).

2081610 is an abundant number, since it is smaller than the sum of its proper divisors (3408030).

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

2081610 is a wasteful number, since it uses less digits than its factorization.

2081610 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 2081610 is about 1442.7785692891. The cubic root of 2081610 is about 127.6830128418.

The spelling of 2081610 in words is "two million, eighty-one thousand, six hundred ten".