82442642 has 8 divisors (see below), whose sum is σ = 124864896. Its totient is φ = 40821012.

The previous prime is 82442611. The next prime is 82442651. The reversal of 82442642 is 24624428.

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

It is a junction number, because it is equal to n+sod(n) for n = 82442599 and 82442608.

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, 199898 + ... + 200309.

It is an arithmetic number, because the mean of its divisors is an integer number (15608112).

Almost surely, 2^82442642 is an apocalyptic number.

82442642 is a deficient number, since it is larger than the sum of its proper divisors (42422254).

82442642 is a wasteful number, since it uses less digits than its factorization.

82442642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400312.

The product of its digits is 24576, while the sum is 32.

The square root of 82442642 is about 9079.7930593158. The cubic root of 82442642 is about 435.2284738040.

The spelling of 82442642 in words is "eighty-two million, four hundred forty-two thousand, six hundred forty-two".