39442142 has 12 divisors (see below), whose sum is σ = 62849040. Its totient is φ = 18560736.

The previous prime is 39442141. The next prime is 39442189. The reversal of 39442142 is 24124493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39442141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33542 + ... + 34697.

It is an arithmetic number, because the mean of its divisors is an integer number (5237420).

Almost surely, 2^39442142 is an apocalyptic number.

39442142 is a deficient number, since it is larger than the sum of its proper divisors (23406898).

39442142 is a wasteful number, since it uses less digits than its factorization.

39442142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68275 (or 68258 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 39442142 is about 6280.2979228696. The cubic root of 39442142 is about 340.3978675676.

The spelling of 39442142 in words is "thirty-nine million, four hundred forty-two thousand, one hundred forty-two".