67940 has 24 divisors (see below), whose sum is σ = 147840. Its totient is φ = 26208.

The previous prime is 67939. The next prime is 67943. The reversal of 67940 is 4976.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 821 + ... + 899.

It is an arithmetic number, because the mean of its divisors is an integer number (6160).

2⁶⁷⁹⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73920).

67940 is an abundant number, since it is smaller than the sum of its proper divisors (79900).

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

67940 is a wasteful number, since it uses less digits than its factorization.

67940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 67940 is about 260.6530260711. The cubic root of 67940 is about 40.8045426187.

The spelling of 67940 in words is "sixty-seven thousand, nine hundred forty".