34240 has 28 divisors (see below), whose sum is σ = 82296. Its totient is φ = 13568.

The previous prime is 34231. The next prime is 34253. The reversal of 34240 is 4243.

34240 is nontrivially palindromic in base 15.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 34240.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267 + ... + 373.

2³⁴²⁴⁰ 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 34240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41148).

34240 is an abundant number, since it is smaller than the sum of its proper divisors (48056).

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

34240 is a wasteful number, since it uses less digits than its factorization.

34240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 34240 is about 185.0405360995. The cubic root of 34240 is about 32.4721655172.

Adding to 34240 its reverse (4243), we get a palindrome (38483).

It can be divided in two parts, 3 and 4240, that multiplied together give a triangular number (12720 = T₁₅₉).

The spelling of 34240 in words is "thirty-four thousand, two hundred forty".