642202082 has 8 divisors (see below), whose sum is σ = 967334400. Its totient is φ = 319757284.

The previous prime is 642202049. The next prime is 642202091. The reversal of 642202082 is 280202246.

642202082 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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, 671282 + ... + 672237.

It is an arithmetic number, because the mean of its divisors is an integer number (120916800).

Almost surely, 2^642202082 is an apocalyptic number.

642202082 is a deficient number, since it is larger than the sum of its proper divisors (325132318).

642202082 is a wasteful number, since it uses less digits than its factorization.

642202082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343760.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 642202082 is about 25341.7063750648. The cubic root of 642202082 is about 862.7611282989.

The spelling of 642202082 in words is "six hundred forty-two million, two hundred two thousand, eighty-two".