43443361 has 8 divisors (see below), whose sum is σ = 46992680. Its totient is φ = 39923712.

The previous prime is 43443353. The next prime is 43443371. The reversal of 43443361 is 16334434.

It can be written as a sum of positive squares in 4 ways, for example, as 1918225 + 41525136 = 1385^2 + 6444^2 .

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 43443361 - 2³ = 43443353 is a prime.

It is a super-2 number, since 2×43443361² = 3774651229952642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43443341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4320 + ... + 10273.

It is an arithmetic number, because the mean of its divisors is an integer number (5874085).

Almost surely, 2^43443361 is an apocalyptic number.

It is an amenable number.

43443361 is a deficient number, since it is larger than the sum of its proper divisors (3549319).

43443361 is a wasteful number, since it uses less digits than its factorization.

43443361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14835.

The product of its digits is 10368, while the sum is 28.

The square root of 43443361 is about 6591.1577890383. The cubic root of 43443361 is about 351.5397765764.

Adding to 43443361 its reverse (16334434), we get a palindrome (59777795).

The spelling of 43443361 in words is "forty-three million, four hundred forty-three thousand, three hundred sixty-one".