43958940 has 96 divisors (see below), whose sum is σ = 132378624. Its totient is φ = 10859520.

The previous prime is 43958933. The next prime is 43958947. The reversal of 43958940 is 4985934.

43958940 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 (43958933) and next prime (43958947).

It is a junction number, because it is equal to n+sod(n) for n = 43958892 and 43958901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43958947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72117 + ... + 72723.

It is an arithmetic number, because the mean of its divisors is an integer number (1378944).

Almost surely, 2^43958940 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 43958940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66189312).

43958940 is an abundant number, since it is smaller than the sum of its proper divisors (88419684).

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

43958940 is a wasteful number, since it uses less digits than its factorization.

43958940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707 (or 705 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 43958940 is about 6630.1538443689. The cubic root of 43958940 is about 352.9249841264.

The spelling of 43958940 in words is "forty-three million, nine hundred fifty-eight thousand, nine hundred forty".