438943 has 4 divisors (see below), whose sum is σ = 443080. Its totient is φ = 434808.

The previous prime is 438941. The next prime is 438953. The reversal of 438943 is 349834.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 349834 = 2 ⋅174917.

It is a cyclic number.

It is not a de Polignac number, because 438943 - 2¹ = 438941 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

438943 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438941) 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, 1905 + ... + 2122.

It is an arithmetic number, because the mean of its divisors is an integer number (110770).

2⁴³⁸⁹⁴³ is an apocalyptic number.

438943 is a deficient number, since it is larger than the sum of its proper divisors (4137).

438943 is a wasteful number, since it uses less digits than its factorization.

438943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4136.

The product of its digits is 10368, while the sum is 31.

The square root of 438943 is about 662.5277352685. The cubic root of 438943 is about 75.9980955201.

The spelling of 438943 in words is "four hundred thirty-eight thousand, nine hundred forty-three".