943818940 has 48 divisors (see below), whose sum is σ = 2053783872. Its totient is φ = 364041216.

The previous prime is 943818919. The next prime is 943818943. The reversal of 943818940 is 49818349.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (943818943) 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, 77977 + ... + 89263.

It is an arithmetic number, because the mean of its divisors is an integer number (42787164).

Almost surely, 2^943818940 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 943818940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1026891936).

943818940 is an abundant number, since it is smaller than the sum of its proper divisors (1109964932).

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

943818940 is a wasteful number, since it uses less digits than its factorization.

943818940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11446 (or 11444 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 943818940 is about 30721.6363496478. The cubic root of 943818940 is about 980.9109051037.

The spelling of 943818940 in words is "nine hundred forty-three million, eight hundred eighteen thousand, nine hundred forty".