42544071 has 24 divisors (see below), whose sum is σ = 64247040. Its totient is φ = 27102096.

The previous prime is 42544067. The next prime is 42544079. The reversal of 42544071 is 17044524.

42544071 is a `hidden beast` number, since 4 + 254 + 407 + 1 = 666.

42544071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42544071 - 2² = 42544067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42544079) 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 23 ways as a sum of consecutive naturals, for example, 17020 + ... + 19358.

It is an arithmetic number, because the mean of its divisors is an integer number (2676960).

Almost surely, 2^42544071 is an apocalyptic number.

42544071 is a deficient number, since it is larger than the sum of its proper divisors (21702969).

42544071 is a wasteful number, since it uses less digits than its factorization.

42544071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2435 (or 2432 counting only the distinct ones).

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

The square root of 42544071 is about 6522.5816208002. The cubic root of 42544071 is about 349.0971861479.

Adding to 42544071 its reverse (17044524), we get a palindrome (59588595).

The spelling of 42544071 in words is "forty-two million, five hundred forty-four thousand, seventy-one".