42357957 has 4 divisors (see below), whose sum is σ = 56477280. Its totient is φ = 28238636.

The previous prime is 42357941. The next prime is 42357979. The reversal of 42357957 is 75975324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42357957 - 2⁴ = 42357941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42357907) 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 3 ways as a sum of consecutive naturals, for example, 7059657 + ... + 7059662.

It is an arithmetic number, because the mean of its divisors is an integer number (14119320).

Almost surely, 2^42357957 is an apocalyptic number.

It is an amenable number.

42357957 is a deficient number, since it is larger than the sum of its proper divisors (14119323).

42357957 is a wasteful number, since it uses less digits than its factorization.

42357957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14119322.

The product of its digits is 264600, while the sum is 42.

The square root of 42357957 is about 6508.2990865510. The cubic root of 42357957 is about 348.5873865805.

The spelling of 42357957 in words is "forty-two million, three hundred fifty-seven thousand, nine hundred fifty-seven".