943840 has 48 divisors (see below), whose sum is σ = 2367792. Its totient is φ = 354304.

The previous prime is 943837. The next prime is 943841. The reversal of 943840 is 48349.

943840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 943799 and 943808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (943841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2547 + ... + 2893.

It is an arithmetic number, because the mean of its divisors is an integer number (49329).

2⁹⁴³⁸⁴⁰ 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 943840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1183896).

943840 is an abundant number, since it is smaller than the sum of its proper divisors (1423952).

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

943840 is a wasteful number, since it uses less digits than its factorization.

943840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 943840 is about 971.5142819331. The cubic root of 943840 is about 98.0918200935.

The spelling of 943840 in words is "nine hundred forty-three thousand, eight hundred forty".