438293 has 4 divisors (see below), whose sum is σ = 439788. Its totient is φ = 436800.

The previous prime is 438287. The next prime is 438301. The reversal of 438293 is 392834.

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

It can be written as a sum of positive squares in 2 ways, for example, as 432964 + 5329 = 658^2 + 73^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-438293 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 (438203) 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, 146 + ... + 947.

It is an arithmetic number, because the mean of its divisors is an integer number (109947).

2⁴³⁸²⁹³ is an apocalyptic number.

It is an amenable number.

438293 is a deficient number, since it is larger than the sum of its proper divisors (1495).

438293 is a wasteful number, since it uses less digits than its factorization.

438293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494.

The product of its digits is 5184, while the sum is 29.

The square root of 438293 is about 662.0370080290. The cubic root of 438293 is about 75.9605635658.

The spelling of 438293 in words is "four hundred thirty-eight thousand, two hundred ninety-three".