42446 has 8 divisors (see below), whose sum is σ = 67080. Its totient is φ = 20088.

The previous prime is 42443. The next prime is 42451. The reversal of 42446 is 64424.

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

It is a plaindrome in base 14.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 42446.

It is not an unprimeable number, because it can be changed into a prime (42443) 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, 521 + ... + 596.

It is an arithmetic number, because the mean of its divisors is an integer number (8385).

2⁴²⁴⁴⁶ is an apocalyptic number.

42446 is a deficient number, since it is larger than the sum of its proper divisors (24634).

42446 is a wasteful number, since it uses less digits than its factorization.

42446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138.

The product of its digits is 768, while the sum is 20.

The square root of 42446 is about 206.0242704149. The cubic root of 42446 is about 34.8828737848.

The spelling of 42446 in words is "forty-two thousand, four hundred forty-six".