2022399 has 6 divisors (see below), whose sum is σ = 2921256. Its totient is φ = 1348260.

The previous prime is 2022389. The next prime is 2022401. The reversal of 2022399 is 9932202.

It is not a de Polignac number, because 2022399 - 2⁷ = 2022271 is a prime.

2022399 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022329) 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, 112347 + ... + 112364.

It is an arithmetic number, because the mean of its divisors is an integer number (486876).

2^2022399 is an apocalyptic number.

2022399 is a deficient number, since it is larger than the sum of its proper divisors (898857).

2022399 is a wasteful number, since it uses less digits than its factorization.

2022399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224717 (or 224714 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 2022399 is about 1422.1107551805. The cubic root of 2022399 is about 126.4607094671.

It can be divided in two parts, 202 and 2399, that added together give a square (2601 = 51²).

The spelling of 2022399 in words is "two million, twenty-two thousand, three hundred ninety-nine".