42542204 has 12 divisors (see below), whose sum is σ = 74603928. Its totient is φ = 21226800.

The previous prime is 42542167. The next prime is 42542209. The reversal of 42542204 is 40224524.

It is a self number, because there is not a number n which added to its sum of digits gives 42542204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42542209) 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, 8867 + ... + 12794.

It is an arithmetic number, because the mean of its divisors is an integer number (6216994).

Almost surely, 2^42542204 is an apocalyptic number.

It is an amenable number.

42542204 is a deficient number, since it is larger than the sum of its proper divisors (32061724).

42542204 is a wasteful number, since it uses less digits than its factorization.

42542204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22156 (or 22154 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 42542204 is about 6522.4385010516. The cubic root of 42542204 is about 349.0920794906.

Adding to 42542204 its reverse (40224524), we get a palindrome (82766728).

The spelling of 42542204 in words is "forty-two million, five hundred forty-two thousand, two hundred four".