42508758 has 16 divisors (see below), whose sum is σ = 85141440. Its totient is φ = 14148936.

The previous prime is 42508747. The next prime is 42508777. The reversal of 42508758 is 85780524.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 360 + ... + 9227.

It is an arithmetic number, because the mean of its divisors is an integer number (5321340).

Almost surely, 2^42508758 is an apocalyptic number.

42508758 is an abundant number, since it is smaller than the sum of its proper divisors (42632682).

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

42508758 is a wasteful number, since it uses less digits than its factorization.

42508758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10331.

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 42508758 is about 6519.8740785386. The cubic root of 42508758 is about 349.0005719703. Note that the first 3 decimals are identical.

The spelling of 42508758 in words is "forty-two million, five hundred eight thousand, seven hundred fifty-eight".