438443 has 2 divisors, whose sum is σ = 438444. Its totient is φ = 438442.

The previous prime is 438439. The next prime is 438467. The reversal of 438443 is 344834.

It is a happy number.

438443 is nontrivially palindromic in base 15.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 438443 - 2² = 438439 is a prime.

It is not a weakly prime, because it can be changed into another prime (438143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219221 + 219222.

It is an arithmetic number, because the mean of its divisors is an integer number (219222).

2⁴³⁸⁴⁴³ is an apocalyptic number.

438443 is a deficient number, since it is larger than the sum of its proper divisors (1).

438443 is an equidigital number, since it uses as much as digits as its factorization.

438443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 26.

The square root of 438443 is about 662.1502850562. The cubic root of 438443 is about 75.9692280779.

The spelling of 438443 in words is "four hundred thirty-eight thousand, four hundred forty-three".