42544017 has 12 divisors (see below), whose sum is σ = 61845940. Its totient is φ = 28181088.

The previous prime is 42543967. The next prime is 42544027. The reversal of 42544017 is 71044524.

42544017 is a `hidden beast` number, since 4 + 254 + 401 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13771521 + 28772496 = 3711^2 + 5364^2 .

It is not a de Polignac number, because 42544017 - 2¹⁴ = 42527633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42544027) 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 11 ways as a sum of consecutive naturals, for example, 13642 + ... + 16467.

Almost surely, 2^42544017 is an apocalyptic number.

It is an amenable number.

42544017 is a deficient number, since it is larger than the sum of its proper divisors (19301923).

42544017 is a wasteful number, since it uses less digits than its factorization.

42544017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30272 (or 30269 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 42544017 is about 6522.5774813336. The cubic root of 42544017 is about 349.0970384481.

The spelling of 42544017 in words is "forty-two million, five hundred forty-four thousand, seventeen".