642882 has 16 divisors (see below), whose sum is σ = 1298880. Its totient is φ = 212112.

The previous prime is 642881. The next prime is 642899. The reversal of 642882 is 288246.

It is a happy number.

642882 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (642881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163 + ... + 1145.

It is an arithmetic number, because the mean of its divisors is an integer number (81180).

2⁶⁴²⁸⁸² is an apocalyptic number.

642882 is an abundant number, since it is smaller than the sum of its proper divisors (655998).

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

642882 is a wasteful number, since it uses less digits than its factorization.

642882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097.

The product of its digits is 6144, while the sum is 30.

The square root of 642882 is about 801.7992267395. The cubic root of 642882 is about 86.3065497666.

The spelling of 642882 in words is "six hundred forty-two thousand, eight hundred eighty-two".