867240 has 128 divisors (see below), whose sum is σ = 3196800. Its totient is φ = 207360.

The previous prime is 867233. The next prime is 867253. The reversal of 867240 is 42768.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 3.

It is an unprimeable number.

867240 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11844 + ... + 11916.

It is an arithmetic number, because the mean of its divisors is an integer number (24975).

2⁸⁶⁷²⁴⁰ 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 867240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1598400).

867240 is an abundant number, since it is smaller than the sum of its proper divisors (2329560).

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

867240 is a wasteful number, since it uses less digits than its factorization.

867240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 94 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 867240 is about 931.2572147372. The cubic root of 867240 is about 95.3629696874.

The spelling of 867240 in words is "eight hundred sixty-seven thousand, two hundred forty".