64842 has 16 divisors (see below), whose sum is σ = 132192. Its totient is φ = 21200.

The previous prime is 64817. The next prime is 64849. The reversal of 64842 is 24846.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (64849) 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, 553 + ... + 659.

It is an arithmetic number, because the mean of its divisors is an integer number (8262).

2⁶⁴⁸⁴² is an apocalyptic number.

64842 is an abundant number, since it is smaller than the sum of its proper divisors (67350).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66096).

64842 is a wasteful number, since it uses less digits than its factorization.

64842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213.

The product of its digits is 1536, while the sum is 24.

The square root of 64842 is about 254.6409236553. The cubic root of 64842 is about 40.1746529653.

The spelling of 64842 in words is "sixty-four thousand, eight hundred forty-two".