68406 has 16 divisors (see below), whose sum is σ = 147504. Its totient is φ = 21024.

The previous prime is 68399. The next prime is 68437. The reversal of 68406 is 60486.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361 + ... + 516.

It is an arithmetic number, because the mean of its divisors is an integer number (9219).

2⁶⁸⁴⁰⁶ is an apocalyptic number.

68406 is an abundant number, since it is smaller than the sum of its proper divisors (79098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73752).

68406 is a wasteful number, since it uses less digits than its factorization.

68406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 68406 is about 261.5454071476. The cubic root of 68406 is about 40.8976228236.

It can be divided in two parts, 68 and 406, that added together give a palindrome (474).

The spelling of 68406 in words is "sixty-eight thousand, four hundred six".