42542414 has 4 divisors (see below), whose sum is σ = 63813624. Its totient is φ = 21271206.

The previous prime is 42542377. The next prime is 42542417. The reversal of 42542414 is 41424524.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42542417) 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 as a sum of consecutive naturals, namely, 10635602 + ... + 10635605.

It is an arithmetic number, because the mean of its divisors is an integer number (15953406).

Almost surely, 2^42542414 is an apocalyptic number.

42542414 is a deficient number, since it is larger than the sum of its proper divisors (21271210).

42542414 is a wasteful number, since it uses less digits than its factorization.

42542414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21271209.

The product of its digits is 5120, while the sum is 26.

The square root of 42542414 is about 6522.4545993054. The cubic root of 42542414 is about 349.0926538944.

Adding to 42542414 its reverse (41424524), we get a palindrome (83966938).

The spelling of 42542414 in words is "forty-two million, five hundred forty-two thousand, four hundred fourteen".