2081870 has 16 divisors (see below), whose sum is σ = 4282848. Its totient is φ = 713760.

The previous prime is 2081861. The next prime is 2081873. The reversal of 2081870 is 781802.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081873) 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, 14801 + ... + 14940.

It is an arithmetic number, because the mean of its divisors is an integer number (267678).

2^2081870 is an apocalyptic number.

2081870 is an abundant number, since it is smaller than the sum of its proper divisors (2200978).

2081870 is a wasteful number, since it uses less digits than its factorization.

2081870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29755.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 2081870 is about 1442.8686703924. The cubic root of 2081870 is about 127.6883286313.

The spelling of 2081870 in words is "two million, eighty-one thousand, eight hundred seventy".