8642142 has 24 divisors (see below), whose sum is σ = 18817344. Its totient is φ = 2866464.

The previous prime is 8642141. The next prime is 8642147. The reversal of 8642142 is 2412468.

8642142 is a `hidden beast` number, since 8 + 642 + 14 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8642141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2938 + ... + 5090.

It is an arithmetic number, because the mean of its divisors is an integer number (784056).

Almost surely, 2^8642142 is an apocalyptic number.

8642142 is an abundant number, since it is smaller than the sum of its proper divisors (10175202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8642142 is a wasteful number, since it uses less digits than its factorization.

8642142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2384 (or 2381 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 8642142 is about 2939.7520303590. The cubic root of 8642142 is about 205.2140694615.

The spelling of 8642142 in words is "eight million, six hundred forty-two thousand, one hundred forty-two".