4022745 has 16 divisors (see below), whose sum is σ = 6469632. Its totient is φ = 2134400.

The previous prime is 4022741. The next prime is 4022749. The reversal of 4022745 is 5472204.

It is an interprime number because it is at equal distance from previous prime (4022741) and next prime (4022749).

It is not a de Polignac number, because 4022745 - 2² = 4022741 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (4022741) 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 15 ways as a sum of consecutive naturals, for example, 2920 + ... + 4070.

It is an arithmetic number, because the mean of its divisors is an integer number (404352).

Almost surely, 2^4022745 is an apocalyptic number.

It is an amenable number.

4022745 is a deficient number, since it is larger than the sum of its proper divisors (2446887).

4022745 is a wasteful number, since it uses less digits than its factorization.

4022745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392.

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 4022745 is about 2005.6781895409. The cubic root of 4022745 is about 159.0404153422.

Adding to 4022745 its reverse (5472204), we get a palindrome (9494949).

The spelling of 4022745 in words is "four million, twenty-two thousand, seven hundred forty-five".