840466 has 24 divisors (see below), whose sum is σ = 1455552. Its totient is φ = 363000.

The previous prime is 840457. The next prime is 840467. The reversal of 840466 is 664048.

It is not an unprimeable number, because it can be changed into a prime (840467) 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, 5491 + ... + 5641.

It is an arithmetic number, because the mean of its divisors is an integer number (60648).

2⁸⁴⁰⁴⁶⁶ is an apocalyptic number.

840466 is a deficient number, since it is larger than the sum of its proper divisors (615086).

840466 is a wasteful number, since it uses less digits than its factorization.

840466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 840466 is about 916.7693275846. The cubic root of 840466 is about 94.3713243602.

The spelling of 840466 in words is "eight hundred forty thousand, four hundred sixty-six".