109749448 has 8 divisors (see below), whose sum is σ = 205780230. Its totient is φ = 54874720.

The previous prime is 109749443. The next prime is 109749461. The reversal of 109749448 is 844947901.

It can be written as a sum of positive squares in only one way, i.e., 100761444 + 8988004 = 10038^2 + 2998^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 109749398 and 109749407.

It is not an unprimeable number, because it can be changed into a prime (109749443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6859333 + ... + 6859348.

Almost surely, 2^109749448 is an apocalyptic number.

It is an amenable number.

109749448 is a deficient number, since it is larger than the sum of its proper divisors (96030782).

109749448 is a wasteful number, since it uses less digits than its factorization.

109749448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13718687 (or 13718683 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 109749448 is about 10476.1370743228. The cubic root of 109749448 is about 478.7779213242. Note that the first 3 decimals are identical.

The spelling of 109749448 in words is "one hundred nine million, seven hundred forty-nine thousand, four hundred forty-eight".