43830940 has 48 divisors (see below), whose sum is σ = 96181344. Its totient is φ = 16761600.

The previous prime is 43830901. The next prime is 43830949. The reversal of 43830940 is 4903834.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43830949) 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, 44655 + ... + 45625.

It is an arithmetic number, because the mean of its divisors is an integer number (2003778).

Almost surely, 2^43830940 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 43830940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48090672).

43830940 is an abundant number, since it is smaller than the sum of its proper divisors (52350404).

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

43830940 is a wasteful number, since it uses less digits than its factorization.

43830940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078 (or 1076 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 43830940 is about 6620.4939392767. The cubic root of 43830940 is about 352.5821011586.

The spelling of 43830940 in words is "forty-three million, eight hundred thirty thousand, nine hundred forty".