43330381 has 8 divisors (see below), whose sum is σ = 44440704. Its totient is φ = 42228000.

The previous prime is 43330363. The next prime is 43330387. The reversal of 43330381 is 18303334.

43330381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 43330381 - 2¹⁵ = 43297613 is a prime.

It is a super-2 number, since 2×43330381² = 3755043835210322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43330387) 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 7 ways as a sum of consecutive naturals, for example, 9961 + ... + 13633.

It is an arithmetic number, because the mean of its divisors is an integer number (5555088).

Almost surely, 2^43330381 is an apocalyptic number.

It is an amenable number.

43330381 is a deficient number, since it is larger than the sum of its proper divisors (1110323).

43330381 is a wasteful number, since it uses less digits than its factorization.

43330381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3971.

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

The square root of 43330381 is about 6582.5816364098. The cubic root of 43330381 is about 351.2347706825.

The spelling of 43330381 in words is "forty-three million, three hundred thirty thousand, three hundred eighty-one".