105665044 has 24 divisors (see below), whose sum is σ = 190601768. Its totient is φ = 51217920.

The previous prime is 105665041. The next prime is 105665129. The reversal of 105665044 is 440566501.

It can be written as a sum of positive squares in 4 ways, for example, as 10368400 + 95296644 = 3220^2 + 9762^2 .

It is a super-2 number, since 2×105665044² = 22330203047043872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105664997 and 105665015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105665041) 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, 45184 + ... + 47464.

Almost surely, 2^105665044 is an apocalyptic number.

It is an amenable number.

105665044 is a deficient number, since it is larger than the sum of its proper divisors (84936724).

105665044 is a wasteful number, since it uses less digits than its factorization.

105665044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2635 (or 2633 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 105665044 is about 10279.3503685787. The cubic root of 105665044 is about 472.7633260606.

The spelling of 105665044 in words is "one hundred five million, six hundred sixty-five thousand, forty-four".