68304 has 20 divisors (see below), whose sum is σ = 176576. Its totient is φ = 22752.

The previous prime is 68281. The next prime is 68311. The reversal of 68304 is 40386.

It is a Smith number, since the sum of its digits (21) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 664 + ... + 759.

2⁶⁸³⁰⁴ is an apocalyptic number.

It is an amenable number.

68304 is an abundant number, since it is smaller than the sum of its proper divisors (108272).

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 (88288).

68304 is a wasteful number, since it uses less digits than its factorization.

68304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434 (or 1428 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 68304 is about 261.3503395827. The cubic root of 68304 is about 40.8772852672.

The spelling of 68304 in words is "sixty-eight thousand, three hundred four".