106643044 has 6 divisors (see below), whose sum is σ = 186625334. Its totient is φ = 53321520.

The previous prime is 106643041. The next prime is 106643059. The reversal of 106643044 is 440346601.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 94322944 + 12320100 = 9712^2 + 3510^2 .

It is a super-2 number, since 2×106643044² = 22745477667171872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106643041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13330377 + ... + 13330384.

Almost surely, 2^106643044 is an apocalyptic number.

It is an amenable number.

106643044 is a deficient number, since it is larger than the sum of its proper divisors (79982290).

106643044 is a wasteful number, since it uses less digits than its factorization.

106643044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26660765 (or 26660763 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 106643044 is about 10326.8118991294. The cubic root of 106643044 is about 474.2174283035.

Adding to 106643044 its reverse (440346601), we get a palindrome (546989645).

The spelling of 106643044 in words is "one hundred six million, six hundred forty-three thousand, forty-four".