42542258 has 16 divisors (see below), whose sum is σ = 69870816. Its totient is φ = 19266240.

The previous prime is 42542251. The next prime is 42542263. The reversal of 42542258 is 85224524.

It is not an unprimeable number, because it can be changed into a prime (42542251) 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, 2810 + ... + 9642.

It is an arithmetic number, because the mean of its divisors is an integer number (4366926).

Almost surely, 2^42542258 is an apocalyptic number.

42542258 is a deficient number, since it is larger than the sum of its proper divisors (27328558).

42542258 is a wasteful number, since it uses less digits than its factorization.

42542258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7129.

The product of its digits is 25600, while the sum is 32.

The square root of 42542258 is about 6522.4426406064. The cubic root of 42542258 is about 349.0922271946.

The spelling of 42542258 in words is "forty-two million, five hundred forty-two thousand, two hundred fifty-eight".