338438 has 4 divisors (see below), whose sum is σ = 507660. Its totient is φ = 169218.

The previous prime is 338431. The next prime is 338449. The reversal of 338438 is 834833.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 834833 = 167 ⋅4999.

It is a super-2 number, since 2×338438² = 229080559688, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 338438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84608 + ... + 84611.

It is an arithmetic number, because the mean of its divisors is an integer number (126915).

2³³⁸⁴³⁸ is an apocalyptic number.

338438 is a deficient number, since it is larger than the sum of its proper divisors (169222).

338438 is a wasteful number, since it uses less digits than its factorization.

338438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169221.

The product of its digits is 6912, while the sum is 29.

The square root of 338438 is about 581.7542436459. The cubic root of 338438 is about 69.6882737351.

The spelling of 338438 in words is "three hundred thirty-eight thousand, four hundred thirty-eight".