2811020 has 12 divisors (see below), whose sum is σ = 5903184. Its totient is φ = 1124400.

The previous prime is 2811013. The next prime is 2811041. The reversal of 2811020 is 201182.

It is a junction number, because it is equal to n+sod(n) for n = 2810986 and 2811004.

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, 70256 + ... + 70295.

It is an arithmetic number, because the mean of its divisors is an integer number (491932).

2^2811020 is an apocalyptic number.

2811020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2811020 is an abundant number, since it is smaller than the sum of its proper divisors (3092164).

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

2811020 is a wasteful number, since it uses less digits than its factorization.

2811020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140560 (or 140558 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2811020 is about 1676.6096743130. The cubic root of 2811020 is about 141.1306402843.

The spelling of 2811020 in words is "two million, eight hundred eleven thousand, twenty".