68438 has 8 divisors (see below), whose sum is σ = 108120. Its totient is φ = 32400.

The previous prime is 68437. The next prime is 68443. The reversal of 68438 is 83486.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 68438.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 863 + ... + 938.

It is an arithmetic number, because the mean of its divisors is an integer number (13515).

2⁶⁸⁴³⁸ is an apocalyptic number.

68438 is a deficient number, since it is larger than the sum of its proper divisors (39682).

68438 is a wasteful number, since it uses less digits than its factorization.

68438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1822.

The product of its digits is 4608, while the sum is 29.

The square root of 68438 is about 261.6065748409. The cubic root of 68438 is about 40.9039990670.

The spelling of 68438 in words is "sixty-eight thousand, four hundred thirty-eight".