109268020 has 24 divisors (see below), whose sum is σ = 230635944. Its totient is φ = 43483776.

The previous prime is 109267999. The next prime is 109268021. The reversal of 109268020 is 20862901.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 23853456 + 85414564 = 4884^2 + 9242^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 109268020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109268021) 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 in 7 ways as a sum of consecutive naturals, for example, 9927 + ... + 17806.

It is an arithmetic number, because the mean of its divisors is an integer number (9609831).

Almost surely, 2^109268020 is an apocalyptic number.

109268020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109268020 is an abundant number, since it is smaller than the sum of its proper divisors (121367924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109268020 is a wasteful number, since it uses less digits than its factorization.

109268020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27939 (or 27937 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 109268020 is about 10453.1344581422. The cubic root of 109268020 is about 478.0768245421.

The spelling of 109268020 in words is "one hundred nine million, two hundred sixty-eight thousand, twenty".