238429 has 4 divisors (see below), whose sum is σ = 240160. Its totient is φ = 236700.

The previous prime is 238423. The next prime is 238439. The reversal of 238429 is 924832.

238429 is nontrivially palindromic in base 15.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 238429 - 2⁵ = 238397 is a prime.

It is a Duffinian number.

238429 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 238397 and 238406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639 + ... + 940.

It is an arithmetic number, because the mean of its divisors is an integer number (60040).

2²³⁸⁴²⁹ is an apocalyptic number.

It is an amenable number.

238429 is a deficient number, since it is larger than the sum of its proper divisors (1731).

238429 is a wasteful number, since it uses less digits than its factorization.

238429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730.

The product of its digits is 3456, while the sum is 28.

The square root of 238429 is about 488.2919208834. The cubic root of 238429 is about 62.0087570010.

The spelling of 238429 in words is "two hundred thirty-eight thousand, four hundred twenty-nine".