438071 has 4 divisors (see below), whose sum is σ = 442200. Its totient is φ = 433944.

The previous prime is 438049. The next prime is 438091. The reversal of 438071 is 170834.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-438071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1901 + ... + 2118.

It is an arithmetic number, because the mean of its divisors is an integer number (110550).

2⁴³⁸⁰⁷¹ is an apocalyptic number.

438071 is a deficient number, since it is larger than the sum of its proper divisors (4129).

438071 is a wasteful number, since it uses less digits than its factorization.

438071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4128.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 438071 is about 661.8693224497. The cubic root of 438071 is about 75.9477364592.

The spelling of 438071 in words is "four hundred thirty-eight thousand, seventy-one".