109939828 has 12 divisors (see below), whose sum is σ = 192723300. Its totient is φ = 54876032.

The previous prime is 109939789. The next prime is 109939829. The reversal of 109939828 is 828939901.

It can be written as a sum of positive squares in 2 ways, for example, as 42667024 + 67272804 = 6532^2 + 8202^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109939829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20803 + ... + 25546.

It is an arithmetic number, because the mean of its divisors is an integer number (16060275).

Almost surely, 2^109939828 is an apocalyptic number.

It is an amenable number.

109939828 is a deficient number, since it is larger than the sum of its proper divisors (82783472).

109939828 is a wasteful number, since it uses less digits than its factorization.

109939828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46946 (or 46944 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 49.

The square root of 109939828 is about 10485.2195017558. The cubic root of 109939828 is about 479.0546033118.

The spelling of 109939828 in words is "one hundred nine million, nine hundred thirty-nine thousand, eight hundred twenty-eight".