4022845 has 8 divisors (see below), whose sum is σ = 4846176. Its totient is φ = 3205776.

The previous prime is 4022831. The next prime is 4022849. The reversal of 4022845 is 5482204.

4022845 = T₆ + T₇ + ... + T₂₈₈.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4022845 - 2⁷ = 4022717 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 (4022849) 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 7 ways as a sum of consecutive naturals, for example, 7 + ... + 2836.

It is an arithmetic number, because the mean of its divisors is an integer number (605772).

Almost surely, 2^4022845 is an apocalyptic number.

It is an amenable number.

4022845 is a deficient number, since it is larger than the sum of its proper divisors (823331).

4022845 is a wasteful number, since it uses less digits than its factorization.

4022845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3131.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 4022845 is about 2005.7031186095. The cubic root of 4022845 is about 159.0417331745.

The spelling of 4022845 in words is "four million, twenty-two thousand, eight hundred forty-five".