442136 has 16 divisors (see below), whose sum is σ = 878040. Its totient is φ = 208000.

The previous prime is 442121. The next prime is 442139. The reversal of 442136 is 631244.

It is a happy number.

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 442136.

It is not an unprimeable number, because it can be changed into a prime (442139) by changing a digit.

442136 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 1490 + ... + 1761.

2⁴⁴²¹³⁶ is an apocalyptic number.

It is an amenable number.

442136 is a deficient number, since it is larger than the sum of its proper divisors (435904).

442136 is a wasteful number, since it uses less digits than its factorization.

442136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3274 (or 3270 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 442136 is about 664.9330793396. The cubic root of 442136 is about 76.1819279596.

The spelling of 442136 in words is "four hundred forty-two thousand, one hundred thirty-six".