2022784 has 16 divisors (see below), whose sum is σ = 4030020. Its totient is φ = 1011328.

The previous prime is 2022773. The next prime is 2022791. The reversal of 2022784 is 4872202.

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×2022784² = 8183310221312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7774 + ... + 8029.

2^2022784 is an apocalyptic number.

It is an amenable number.

2022784 is a deficient number, since it is larger than the sum of its proper divisors (2007236).

2022784 is an equidigital number, since it uses as much as digits as its factorization.

2022784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15817 (or 15805 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 2022784 is about 1422.2461109105. The cubic root of 2022784 is about 126.4687336476.

Adding to 2022784 its reverse (4872202), we get a palindrome (6894986).

The spelling of 2022784 in words is "two million, twenty-two thousand, seven hundred eighty-four".