42358537 has 4 divisors (see below), whose sum is σ = 45616900. Its totient is φ = 39100176.

The previous prime is 42358523. The next prime is 42358553. The reversal of 42358537 is 73585324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28933641 + 13424896 = 5379^2 + 3664^2 .

It is a cyclic number.

It is not a de Polignac number, because 42358537 - 2⁷ = 42358409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42358496 and 42358505.

It is not an unprimeable number, because it can be changed into a prime (42358567) 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, 1629162 + ... + 1629187.

It is an arithmetic number, because the mean of its divisors is an integer number (11404225).

Almost surely, 2^42358537 is an apocalyptic number.

It is an amenable number.

42358537 is a deficient number, since it is larger than the sum of its proper divisors (3258363).

42358537 is a wasteful number, since it uses less digits than its factorization.

42358537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3258362.

The product of its digits is 100800, while the sum is 37.

The square root of 42358537 is about 6508.3436448915. The cubic root of 42358537 is about 348.5889776217.

The spelling of 42358537 in words is "forty-two million, three hundred fifty-eight thousand, five hundred thirty-seven".