8020642 has 8 divisors (see below), whose sum is σ = 13749696. Its totient is φ = 3437412.

The previous prime is 8020631. The next prime is 8020643. The reversal of 8020642 is 2460208.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (8020643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286438 + ... + 286465.

It is an arithmetic number, because the mean of its divisors is an integer number (1718712).

Almost surely, 2^8020642 is an apocalyptic number.

8020642 is a deficient number, since it is larger than the sum of its proper divisors (5729054).

8020642 is a wasteful number, since it uses less digits than its factorization.

8020642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572912.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 8020642 is about 2832.0737984735. The cubic root of 8020642 is about 200.1718689297.

The spelling of 8020642 in words is "eight million, twenty thousand, six hundred forty-two".