438934 has 4 divisors (see below), whose sum is σ = 658404. Its totient is φ = 219466.

The previous prime is 438913. The next prime is 438937. The reversal of 438934 is 439834.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 439834 = 2 ⋅219917.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 438896 and 438905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109732 + ... + 109735.

It is an arithmetic number, because the mean of its divisors is an integer number (164601).

2⁴³⁸⁹³⁴ is an apocalyptic number.

438934 is a deficient number, since it is larger than the sum of its proper divisors (219470).

438934 is a wasteful number, since it uses less digits than its factorization.

438934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219469.

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

The square root of 438934 is about 662.5209430652. The cubic root of 438934 is about 75.9975761000.

Subtracting 438934 from its reverse (439834), we obtain a square (900 = 30²).

The spelling of 438934 in words is "four hundred thirty-eight thousand, nine hundred thirty-four".