443138 has 8 divisors (see below), whose sum is σ = 674832. Its totient is φ = 218196.

The previous prime is 443129. The next prime is 443147. The reversal of 443138 is 831344.

It is an interprime number because it is at equal distance from previous prime (443129) and next prime (443147).

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 443138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1520 + ... + 1787.

It is an arithmetic number, because the mean of its divisors is an integer number (84354).

2⁴⁴³¹³⁸ is an apocalyptic number.

443138 is a deficient number, since it is larger than the sum of its proper divisors (231694).

443138 is a wasteful number, since it uses less digits than its factorization.

443138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3376.

The product of its digits is 1152, while the sum is 23.

The square root of 443138 is about 665.6861122181. The cubic root of 443138 is about 76.2394341716.

The spelling of 443138 in words is "four hundred forty-three thousand, one hundred thirty-eight".