642202 has 8 divisors (see below), whose sum is σ = 1050912. Its totient is φ = 291900.

The previous prime is 642199. The next prime is 642211. The reversal of 642202 is 202246.

642202 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, 14574 + ... + 14617.

It is an arithmetic number, because the mean of its divisors is an integer number (131364).

2⁶⁴²²⁰² is an apocalyptic number.

642202 is a deficient number, since it is larger than the sum of its proper divisors (408710).

642202 is a wasteful number, since it uses less digits than its factorization.

642202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29204.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 642202 is about 801.3750682421. The cubic root of 642202 is about 86.2761091578.

Adding to 642202 its reverse (202246), we get a palindrome (844448).

The spelling of 642202 in words is "six hundred forty-two thousand, two hundred two".