86442 has 8 divisors (see below), whose sum is σ = 172896. Its totient is φ = 28812.

The previous prime is 86441. The next prime is 86453. The reversal of 86442 is 24468.

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

86442 is an admirable number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (86441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7198 + ... + 7209.

It is an arithmetic number, because the mean of its divisors is an integer number (21612).

2⁸⁶⁴⁴² is an apocalyptic number.

86442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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 (86448).

86442 is a wasteful number, since it uses less digits than its factorization.

86442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14412.

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

The square root of 86442 is about 294.0102039046. The cubic root of 86442 is about 44.2155402178.

Adding to 86442 its product of digits (1536), we get a palindrome (87978).

It can be divided in two parts, 8644 and 2, that added together give a triangular number (8646 = T₁₃₁).

The spelling of 86442 in words is "eighty-six thousand, four hundred forty-two".