42457508 has 12 divisors (see below), whose sum is σ = 76862940. Its totient is φ = 20496672.

The previous prime is 42457501. The next prime is 42457529. The reversal of 42457508 is 80575424.

42457508 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 31114084 + 11343424 = 5578^2 + 3368^2 .

It is not an unprimeable number, because it can be changed into a prime (42457501) 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, 182891 + ... + 183122.

It is an arithmetic number, because the mean of its divisors is an integer number (6405245).

Almost surely, 2^42457508 is an apocalyptic number.

It is an amenable number.

42457508 is a deficient number, since it is larger than the sum of its proper divisors (34405432).

42457508 is a wasteful number, since it uses less digits than its factorization.

42457508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366046 (or 366044 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 42457508 is about 6515.9426025710. The cubic root of 42457508 is about 348.8602599258.

The spelling of 42457508 in words is "forty-two million, four hundred fifty-seven thousand, five hundred eight".