42688043 has 8 divisors (see below), whose sum is σ = 43095360. Its totient is φ = 42283080.

The previous prime is 42688033. The next prime is 42688057. The reversal of 42688043 is 34088624.

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

It is a cyclic number.

It is not a de Polignac number, because 42688043 - 2⁸ = 42687787 is a prime.

It is a super-3 number, since 3×42688043³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 42687994 and 42688012.

It is not an unprimeable number, because it can be changed into a prime (42688033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64448 + ... + 65106.

It is an arithmetic number, because the mean of its divisors is an integer number (5386920).

Almost surely, 2^42688043 is an apocalyptic number.

42688043 is a deficient number, since it is larger than the sum of its proper divisors (407317).

42688043 is a wasteful number, since it uses less digits than its factorization.

42688043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177.

The product of its (nonzero) digits is 36864, while the sum is 35.

The square root of 42688043 is about 6533.6087271890. The cubic root of 42688043 is about 349.4905322366.

The spelling of 42688043 in words is "forty-two million, six hundred eighty-eight thousand, forty-three".