845340 has 48 divisors (see below), whose sum is σ = 2411808. Its totient is φ = 221184.

The previous prime is 845333. The next prime is 845347. The reversal of 845340 is 43548.

It is a happy number.

845340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (845333) and next prime (845347).

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 845340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845347) 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, 4284 + ... + 4476.

It is an arithmetic number, because the mean of its divisors is an integer number (50246).

2⁸⁴⁵³⁴⁰ 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 845340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1205904).

845340 is an abundant number, since it is smaller than the sum of its proper divisors (1566468).

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

845340 is a wasteful number, since it uses less digits than its factorization.

845340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 845340 is about 919.4237325630. The cubic root of 845340 is about 94.5533977771.

Adding to 845340 its reverse (43548), we get a palindrome (888888).

The spelling of 845340 in words is "eight hundred forty-five thousand, three hundred forty".