43940568 has 96 divisors (see below), whose sum is σ = 130440960. Its totient is φ = 12082560.

The previous prime is 43940537. The next prime is 43940569. The reversal of 43940568 is 86504934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43940569) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 141133 + ... + 141443.

It is an arithmetic number, because the mean of its divisors is an integer number (1358760).

Almost surely, 2^43940568 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 43940568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65220480).

43940568 is an abundant number, since it is smaller than the sum of its proper divisors (86500392).

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

43940568 is a wasteful number, since it uses less digits than its factorization.

43940568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 43940568 is about 6628.7682113648. The cubic root of 43940568 is about 352.8758106530.

The spelling of 43940568 in words is "forty-three million, nine hundred forty thousand, five hundred sixty-eight".