42542043 has 16 divisors (see below), whose sum is σ = 58951200. Its totient is φ = 27256320.

The previous prime is 42542011. The next prime is 42542047. The reversal of 42542043 is 34024524.

42542043 is nontrivially palindromic in base 15.

42542043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42542043 - 2⁵ = 42542011 is a prime.

It is a super-2 number, since 2×42542043² = 3619650845227698, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42542047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19953 + ... + 21981.

It is an arithmetic number, because the mean of its divisors is an integer number (3684450).

Almost surely, 2^42542043 is an apocalyptic number.

42542043 is a deficient number, since it is larger than the sum of its proper divisors (16409157).

42542043 is a wasteful number, since it uses less digits than its factorization.

42542043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2302.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 42542043 is about 6522.4261590301. The cubic root of 42542043 is about 349.0916391130.

Adding to 42542043 its reverse (34024524), we get a palindrome (76566567).

The spelling of 42542043 in words is "forty-two million, five hundred forty-two thousand, forty-three".