840268 has 36 divisors (see below), whose sum is σ = 1752408. Its totient is φ = 349440.

The previous prime is 840253. The next prime is 840269. The reversal of 840268 is 862048.

It is not an unprimeable number, because it can be changed into a prime (840269) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7380 + ... + 7492.

It is an arithmetic number, because the mean of its divisors is an integer number (48678).

2⁸⁴⁰²⁶⁸ is an apocalyptic number.

It is an amenable number.

840268 is an abundant number, since it is smaller than the sum of its proper divisors (912140).

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

840268 is a wasteful number, since it uses less digits than its factorization.

840268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 840268 is about 916.6613333178. The cubic root of 840268 is about 94.3639129996.

The spelling of 840268 in words is "eight hundred forty thousand, two hundred sixty-eight".