2022819 has 4 divisors (see below), whose sum is σ = 2697096. Its totient is φ = 1348544.

The previous prime is 2022803. The next prime is 2022841. The reversal of 2022819 is 9182202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2022819 - 2⁴ = 2022803 is a prime.

It is a super-4 number, since 4×2022819⁴ (a number of 26 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2022869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337134 + ... + 337139.

It is an arithmetic number, because the mean of its divisors is an integer number (674274).

2^2022819 is an apocalyptic number.

2022819 is a deficient number, since it is larger than the sum of its proper divisors (674277).

2022819 is an equidigital number, since it uses as much as digits as its factorization.

2022819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674276.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 2022819 is about 1422.2584153381. The cubic root of 2022819 is about 126.4694630681.

The spelling of 2022819 in words is "two million, twenty-two thousand, eight hundred nineteen".