840336 has 80 divisors (see below), whose sum is σ = 2583168. Its totient is φ = 230400.

The previous prime is 840331. The next prime is 840341. The reversal of 840336 is 633048.

It is an interprime number because it is at equal distance from previous prime (840331) and next prime (840341).

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 840336.

It is not an unprimeable number, because it can be changed into a prime (840331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13746 + ... + 13806.

2⁸⁴⁰³³⁶ 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 840336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1291584).

840336 is an abundant number, since it is smaller than the sum of its proper divisors (1742832).

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

840336 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 12 representation: 840336 = (346380)₁₂.

840336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 840336 is about 916.6984236923. The cubic root of 840336 is about 94.3664584466.

It can be divided in two parts, 840 and 336, that added together give a triangular number (1176 = T₄₈).

The spelling of 840336 in words is "eight hundred forty thousand, three hundred thirty-six".