4022399 has 4 divisors (see below), whose sum is σ = 4029264. Its totient is φ = 4015536.

The previous prime is 4022383. The next prime is 4022407. The reversal of 4022399 is 9932204.

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 4022399 - 2⁴ = 4022383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4022339) 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, 2462 + ... + 3755.

It is an arithmetic number, because the mean of its divisors is an integer number (1007316).

Almost surely, 2^4022399 is an apocalyptic number.

4022399 is a deficient number, since it is larger than the sum of its proper divisors (6865).

4022399 is an equidigital number, since it uses as much as digits as its factorization.

4022399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6864.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 4022399 is about 2005.5919325725. The cubic root of 4022399 is about 159.0358554740.

The spelling of 4022399 in words is "four million, twenty-two thousand, three hundred ninety-nine".