42680537 has 4 divisors (see below), whose sum is σ = 42755856. Its totient is φ = 42605220.

The previous prime is 42680527. The next prime is 42680551. The reversal of 42680537 is 73508624.

It is a happy number.

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 42680537 - 2¹² = 42676441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42680497 and 42680506.

It is not an unprimeable number, because it can be changed into a prime (42680507) 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, 36803 + ... + 37944.

It is an arithmetic number, because the mean of its divisors is an integer number (10688964).

Almost surely, 2^42680537 is an apocalyptic number.

It is an amenable number.

42680537 is a deficient number, since it is larger than the sum of its proper divisors (75319).

42680537 is an equidigital number, since it uses as much as digits as its factorization.

42680537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75318.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 42680537 is about 6533.0342873737. The cubic root of 42680537 is about 349.4700469554.

The spelling of 42680537 in words is "forty-two million, six hundred eighty thousand, five hundred thirty-seven".