642162 has 32 divisors (see below), whose sum is σ = 1393920. Its totient is φ = 196560.

The previous prime is 642157. The next prime is 642163. The reversal of 642162 is 261246.

It is a happy number.

642162 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 (642163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4837 + ... + 4967.

It is an arithmetic number, because the mean of its divisors is an integer number (43560).

2⁶⁴²¹⁶² is an apocalyptic number.

642162 is an abundant number, since it is smaller than the sum of its proper divisors (751758).

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

642162 is a wasteful number, since it uses less digits than its factorization.

642162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198.

The product of its digits is 576, while the sum is 21.

The square root of 642162 is about 801.3501107506. The cubic root of 642162 is about 86.2743178647.

The spelling of 642162 in words is "six hundred forty-two thousand, one hundred sixty-two".