105243844 has 6 divisors (see below), whose sum is σ = 184176734. Its totient is φ = 52621920.

The previous prime is 105243841. The next prime is 105243863. The reversal of 105243844 is 448342501.

It can be written as a sum of positive squares in only one way, i.e., 101243844 + 4000000 = 10062^2 + 2000^2 .

It is a super-2 number, since 2×105243844² = 22152533399792672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105243841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13155477 + ... + 13155484.

Almost surely, 2^105243844 is an apocalyptic number.

It is an amenable number.

105243844 is a deficient number, since it is larger than the sum of its proper divisors (78932890).

105243844 is a wasteful number, since it uses less digits than its factorization.

105243844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26310965 (or 26310963 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 105243844 is about 10258.8422348723. The cubic root of 105243844 is about 472.1343161265.

The spelling of 105243844 in words is "one hundred five million, two hundred forty-three thousand, eight hundred forty-four".