4222845 has 48 divisors (see below), whose sum is σ = 8424000. Its totient is φ = 1935360.

The previous prime is 4222843. The next prime is 4222849. The reversal of 4222845 is 5482224.

It is a happy number.

It is not a de Polignac number, because 4222845 - 2¹ = 4222843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4222843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9181 + ... + 9629.

It is an arithmetic number, because the mean of its divisors is an integer number (175500).

Almost surely, 2^4222845 is an apocalyptic number.

4222845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4222845 is a deficient number, since it is larger than the sum of its proper divisors (4201155).

4222845 is a wasteful number, since it uses less digits than its factorization.

4222845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490 (or 487 counting only the distinct ones).

The product of its digits is 5120, while the sum is 27.

The square root of 4222845 is about 2054.9562039129. The cubic root of 4222845 is about 161.6348657942.

The spelling of 4222845 in words is "four million, two hundred twenty-two thousand, eight hundred forty-five".