42516124 has 18 divisors (see below), whose sum is σ = 86551080. Its totient is φ = 18221112.

The previous prime is 42516119. The next prime is 42516157. The reversal of 42516124 is 42161524.

It is a happy number.

42516124 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 108264 + ... + 108655.

Almost surely, 2^42516124 is an apocalyptic number.

It is an amenable number.

42516124 is an abundant number, since it is smaller than the sum of its proper divisors (44034956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42516124 is a wasteful number, since it uses less digits than its factorization.

42516124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216937 (or 216928 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 42516124 is about 6520.4389422799. The cubic root of 42516124 is about 349.0207293046.

Adding to 42516124 its reverse (42161524), we get a palindrome (84677648).

The spelling of 42516124 in words is "forty-two million, five hundred sixteen thousand, one hundred twenty-four".