42486 has 16 divisors (see below), whose sum is σ = 87024. Its totient is φ = 13824.

The previous prime is 42473. The next prime is 42487. The reversal of 42486 is 68424.

42486 is nontrivially palindromic in base 9.

42486 is a nontrivial binomial coefficient, being equal to C(292, 2).

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42487) 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, 390 + ... + 486.

It is an arithmetic number, because the mean of its divisors is an integer number (5439).

2⁴²⁴⁸⁶ is an apocalyptic number.

42486 is the 291-st triangular number and also the 146-th hexagonal number.

42486 is an abundant number, since it is smaller than the sum of its proper divisors (44538).

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 (43512).

42486 is a wasteful number, since it uses less digits than its factorization.

42486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175.

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

The square root of 42486 is about 206.1213234966. The cubic root of 42486 is about 34.8938279138.

It can be divided in two parts, 42 and 486, that added together give a triangular number (528 = T₃₂).

The spelling of 42486 in words is "forty-two thousand, four hundred eighty-six".