67240 has 24 divisors (see below), whose sum is σ = 155070. Its totient is φ = 26240.

The previous prime is 67231. The next prime is 67247. The reversal of 67240 is 4276.

67240 is nontrivially palindromic in base 3 and base 9.

It can be written as a sum of positive squares in 3 ways, for example, as 17956 + 49284 = 134^2 + 222^2 .

It is a zygodrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (67247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1620 + ... + 1660.

2⁶⁷²⁴⁰ 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 67240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77535).

67240 is an abundant number, since it is smaller than the sum of its proper divisors (87830).

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

67240 is a wasteful number, since it uses less digits than its factorization.

67240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 48 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 67240 is about 259.3067681338. The cubic root of 67240 is about 40.6639193104.

Adding to 67240 its product of nonzero digits (336), we get a palindrome (67576).

The spelling of 67240 in words is "sixty-seven thousand, two hundred forty".