4042564 has 12 divisors (see below), whose sum is σ = 7225344. Its totient is φ = 1978184.

The previous prime is 4042561. The next prime is 4042601. The reversal of 4042564 is 4652404.

It is not an unprimeable number, because it can be changed into a prime (4042561) 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 3 ways as a sum of consecutive naturals, for example, 10564 + ... + 10939.

It is an arithmetic number, because the mean of its divisors is an integer number (602112).

Almost surely, 2^4042564 is an apocalyptic number.

It is an amenable number.

4042564 is a deficient number, since it is larger than the sum of its proper divisors (3182780).

4042564 is a wasteful number, since it uses less digits than its factorization.

4042564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21554 (or 21552 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 4042564 is about 2010.6128418967. The cubic root of 4042564 is about 159.3011709308.

Adding to 4042564 its product of nonzero digits (3840), we get a palindrome (4046404).

Adding to 4042564 its reverse (4652404), we get a palindrome (8694968).

The spelling of 4042564 in words is "four million, forty-two thousand, five hundred sixty-four".