442124 has 12 divisors (see below), whose sum is σ = 781704. Its totient is φ = 218784.

The previous prime is 442121. The next prime is 442139. The reversal of 442124 is 421244.

442124 = T₃₂ + T₃₃ + ... + T₁₃₈.

It is a hoax number, since the sum of its digits (17) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (442121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89 + ... + 944.

It is an arithmetic number, because the mean of its divisors is an integer number (65142).

2⁴⁴²¹²⁴ is an apocalyptic number.

It is an amenable number.

442124 is a deficient number, since it is larger than the sum of its proper divisors (339580).

442124 is a wasteful number, since it uses less digits than its factorization.

442124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144 (or 1142 counting only the distinct ones).

The product of its digits is 256, while the sum is 17.

The square root of 442124 is about 664.9240558139. The cubic root of 442124 is about 76.1812387362.

Adding to 442124 its reverse (421244), we get a palindrome (863368).

The spelling of 442124 in words is "four hundred forty-two thousand, one hundred twenty-four", and thus it is an iban number.