4022865 has 96 divisors (see below), whose sum is σ = 9225216. Its totient is φ = 1632960.

The previous prime is 4022857. The next prime is 4022867. The reversal of 4022865 is 5682204.

4022865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4022865 - 2³ = 4022857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (4022867) by changing a digit.

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 in 95 ways as a sum of consecutive naturals, for example, 93534 + ... + 93576.

It is an arithmetic number, because the mean of its divisors is an integer number (96096).

Almost surely, 2^4022865 is an apocalyptic number.

4022865 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4022865 is an abundant number, since it is smaller than the sum of its proper divisors (5202351).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4022865 is a wasteful number, since it uses less digits than its factorization.

4022865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 4022865 is about 2005.7081043861. The cubic root of 4022865 is about 159.0419967384.

The spelling of 4022865 in words is "four million, twenty-two thousand, eight hundred sixty-five".