43381330 has 8 divisors (see below), whose sum is σ = 78086412. Its totient is φ = 17352528.

The previous prime is 43381319. The next prime is 43381333. The reversal of 43381330 is 3318334.

43381330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 41229241 + 2152089 = 6421^2 + 1467^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 43381295 and 43381304.

It is not an unprimeable number, because it can be changed into a prime (43381333) 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 3 ways as a sum of consecutive naturals, for example, 2169057 + ... + 2169076.

Almost surely, 2^43381330 is an apocalyptic number.

43381330 is a deficient number, since it is larger than the sum of its proper divisors (34705082).

43381330 is a wasteful number, since it uses less digits than its factorization.

43381330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4338140.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 43381330 is about 6586.4504856561. The cubic root of 43381330 is about 351.3723804509.

Adding to 43381330 its reverse (3318334), we get a palindrome (46699664).

The spelling of 43381330 in words is "forty-three million, three hundred eighty-one thousand, three hundred thirty".