438259 has 2 divisors, whose sum is σ = 438260. Its totient is φ = 438258.

The previous prime is 438253. The next prime is 438271. The reversal of 438259 is 952834.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 438259 - 2⁷ = 438131 is a prime.

438259 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 438259.

It is not a weakly prime, because it can be changed into another prime (438253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 219129 + 219130.

It is an arithmetic number, because the mean of its divisors is an integer number (219130).

2⁴³⁸²⁵⁹ is an apocalyptic number.

438259 is a deficient number, since it is larger than the sum of its proper divisors (1).

438259 is an equidigital number, since it uses as much as digits as its factorization.

438259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 31.

The square root of 438259 is about 662.0113292082. The cubic root of 438259 is about 75.9585993349.

It can be divided in two parts, 43825 and 9, that added together give a palindrome (43834).

The spelling of 438259 in words is "four hundred thirty-eight thousand, two hundred fifty-nine".