105440443 has 8 divisors (see below), whose sum is σ = 117519120. Its totient is φ = 94014720.

The previous prime is 105440407. The next prime is 105440509. The reversal of 105440443 is 344044501.

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 105440443 - 2⁹ = 105439931 is a prime.

It is a super-2 number, since 2×105440443² = 22235374040072498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105440243) 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, 162898 + ... + 163543.

It is an arithmetic number, because the mean of its divisors is an integer number (14689890).

Almost surely, 2^105440443 is an apocalyptic number.

105440443 is a deficient number, since it is larger than the sum of its proper divisors (12078677).

105440443 is a wasteful number, since it uses less digits than its factorization.

105440443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326477.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 105440443 is about 10268.4196934095. The cubic root of 105440443 is about 472.4281207905.

Adding to 105440443 its reverse (344044501), we get a palindrome (449484944).

The spelling of 105440443 in words is "one hundred five million, four hundred forty thousand, four hundred forty-three".