43381344 has 48 divisors (see below), whose sum is σ = 114730560. Its totient is φ = 14352000.

The previous prime is 43381339. The next prime is 43381379. The reversal of 43381344 is 44318334.

It is a tau number, because it is divible by the number of its divisors (48).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11719 + ... + 14969.

It is an arithmetic number, because the mean of its divisors is an integer number (2390220).

Almost surely, 2^43381344 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 43381344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57365280).

43381344 is an abundant number, since it is smaller than the sum of its proper divisors (71349216).

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

43381344 is a wasteful number, since it uses less digits than its factorization.

43381344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3403 (or 3395 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 43381344 is about 6586.4515484440. The cubic root of 43381344 is about 351.3724182492.

Adding to 43381344 its reverse (44318334), we get a palindrome (87699678).

The spelling of 43381344 in words is "forty-three million, three hundred eighty-one thousand, three hundred forty-four".