268438 has 4 divisors (see below), whose sum is σ = 402660. Its totient is φ = 134218.

The previous prime is 268403. The next prime is 268439. The reversal of 268438 is 834862.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268439) 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, 67108 + ... + 67111.

It is an arithmetic number, because the mean of its divisors is an integer number (100665).

2²⁶⁸⁴³⁸ is an apocalyptic number.

268438 is a deficient number, since it is larger than the sum of its proper divisors (134222).

268438 is a wasteful number, since it uses less digits than its factorization.

268438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134221.

The product of its digits is 9216, while the sum is 31.

The square root of 268438 is about 518.1100269248. The cubic root of 268438 is about 64.5081615376.

It can be divided in two parts, 26 and 8438, that added together give a square (8464 = 92²).

The spelling of 268438 in words is "two hundred sixty-eight thousand, four hundred thirty-eight".