42542312 has 16 divisors (see below), whose sum is σ = 80028000. Its totient is φ = 21201520.

The previous prime is 42542303. The next prime is 42542329. The reversal of 42542312 is 21324524.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6062 + ... + 11037.

It is an arithmetic number, because the mean of its divisors is an integer number (5001750).

Almost surely, 2^42542312 is an apocalyptic number.

It is an amenable number.

42542312 is a deficient number, since it is larger than the sum of its proper divisors (37485688).

42542312 is a wasteful number, since it uses less digits than its factorization.

42542312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17416 (or 17412 counting only the distinct ones).

The product of its digits is 1920, while the sum is 23.

The square root of 42542312 is about 6522.4467801585. The cubic root of 42542312 is about 349.0923748985.

Adding to 42542312 its reverse (21324524), we get a palindrome (63866836).

The spelling of 42542312 in words is "forty-two million, five hundred forty-two thousand, three hundred twelve".