42542037 has 8 divisors (see below), whose sum is σ = 63025280. Its totient is φ = 28361340.

The previous prime is 42542011. The next prime is 42542047. The reversal of 42542037 is 73024524.

It is not a de Polignac number, because 42542037 - 2¹⁰ = 42541013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1575631 = 42542037 / (4 + 2 + 5 + 4 + 2 + 0 + 3 + 7).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42542037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42542047) 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, 787789 + ... + 787842.

It is an arithmetic number, because the mean of its divisors is an integer number (7878160).

Almost surely, 2^42542037 is an apocalyptic number.

It is an amenable number.

42542037 is a deficient number, since it is larger than the sum of its proper divisors (20483243).

42542037 is a wasteful number, since it uses less digits than its factorization.

42542037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575640 (or 1575634 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 42542037 is about 6522.4256990785. The cubic root of 42542037 is about 349.0916227014.

The spelling of 42542037 in words is "forty-two million, five hundred forty-two thousand, thirty-seven".