42158757 has 8 divisors (see below), whose sum is σ = 56241760. Its totient is φ = 28090800.

The previous prime is 42158737. The next prime is 42158789. The reversal of 42158757 is 75785124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42158757 - 2⁷ = 42158629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42158717) 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 7 ways as a sum of consecutive naturals, for example, 8382 + ... + 12432.

It is an arithmetic number, because the mean of its divisors is an integer number (7030220).

Almost surely, 2^42158757 is an apocalyptic number.

It is an amenable number.

42158757 is a deficient number, since it is larger than the sum of its proper divisors (14083003).

42158757 is a wasteful number, since it uses less digits than its factorization.

42158757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7523.

The product of its digits is 78400, while the sum is 39.

The square root of 42158757 is about 6492.9775142072. The cubic root of 42158757 is about 348.0400848924.

The spelling of 42158757 in words is "forty-two million, one hundred fifty-eight thousand, seven hundred fifty-seven".