42542074 has 8 divisors (see below), whose sum is σ = 63894420. Its totient is φ = 21243936.

The previous prime is 42542063. The next prime is 42542077. The reversal of 42542074 is 47024524.

It is a happy number.

42542074 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 30327049 + 12215025 = 5507^2 + 3495^2 .

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

It is not an unprimeable number, because it can be changed into a prime (42542077) 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 3 ways as a sum of consecutive naturals, for example, 11529 + ... + 14764.

Almost surely, 2^42542074 is an apocalyptic number.

42542074 is a deficient number, since it is larger than the sum of its proper divisors (21352346).

42542074 is a wasteful number, since it uses less digits than its factorization.

42542074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27104.

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 42542074 is about 6522.4285354460. The cubic root of 42542074 is about 349.0917239063.

Adding to 42542074 its reverse (47024524), we get a palindrome (89566598).

It can be divided in two parts, 4254 and 2074, that added together give a triangular number (6328 = T₁₁₂).

The spelling of 42542074 in words is "forty-two million, five hundred forty-two thousand, seventy-four".