42678142 has 24 divisors (see below), whose sum is σ = 72777096. Its totient is φ = 18656784.

The previous prime is 42678113. The next prime is 42678173. The reversal of 42678142 is 24187624.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42678098 and 42678107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7113 + ... + 11659.

It is an arithmetic number, because the mean of its divisors is an integer number (3032379).

Almost surely, 2^42678142 is an apocalyptic number.

42678142 is a deficient number, since it is larger than the sum of its proper divisors (30098954).

42678142 is a wasteful number, since it uses less digits than its factorization.

42678142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4600 (or 4581 counting only the distinct ones).

The product of its digits is 21504, while the sum is 34.

The square root of 42678142 is about 6532.8509855958. The cubic root of 42678142 is about 349.4635100459.

The spelling of 42678142 in words is "forty-two million, six hundred seventy-eight thousand, one hundred forty-two".