105005444 has 6 divisors (see below), whose sum is σ = 183759534. Its totient is φ = 52502720.

The previous prime is 105005443. The next prime is 105005449. The reversal of 105005444 is 444500501.

It can be written as a sum of positive squares in only one way, i.e., 93702400 + 11303044 = 9680^2 + 3362^2 .

It is a super-2 number, since 2×105005444² = 22052286539274272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105005443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13125677 + ... + 13125684.

It is an arithmetic number, because the mean of its divisors is an integer number (30626589).

Almost surely, 2^105005444 is an apocalyptic number.

It is an amenable number.

105005444 is a deficient number, since it is larger than the sum of its proper divisors (78754090).

105005444 is a wasteful number, since it uses less digits than its factorization.

105005444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26251365 (or 26251363 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 105005444 is about 10247.2164025163. The cubic root of 105005444 is about 471.7775512641. Note that the first 3 decimals are identical.

Adding to 105005444 its reverse (444500501), we get a palindrome (549505945).

The spelling of 105005444 in words is "one hundred five million, five thousand, four hundred forty-four".