2022761 has 6 divisors (see below), whose sum is σ = 2190510. Its totient is φ = 1867008.

The previous prime is 2022751. The next prime is 2022767. The reversal of 2022761 is 1672202.

It can be written as a sum of positive squares in 3 ways, for example, as 115600 + 1907161 = 340^2 + 1381^2 .

It is not a de Polignac number, because 2022761 - 2¹⁰ = 2021737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2022767) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5816 + ... + 6153.

It is an arithmetic number, because the mean of its divisors is an integer number (365085).

2^2022761 is an apocalyptic number.

It is an amenable number.

2022761 is a deficient number, since it is larger than the sum of its proper divisors (167749).

2022761 is a wasteful number, since it uses less digits than its factorization.

2022761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11995 (or 11982 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 2022761 is about 1422.2380250858. The cubic root of 2022761 is about 126.4682543096.

Adding to 2022761 its reverse (1672202), we get a palindrome (3694963).

The spelling of 2022761 in words is "two million, twenty-two thousand, seven hundred sixty-one".