109050640 has 20 divisors (see below), whose sum is σ = 253542924. Its totient is φ = 43620224.

The previous prime is 109050637. The next prime is 109050647. The reversal of 109050640 is 46050901.

It can be written as a sum of positive squares in 2 ways, for example, as 68956416 + 40094224 = 8304^2 + 6332^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (109050647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 681487 + ... + 681646.

Almost surely, 2^109050640 is an apocalyptic number.

109050640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109050640 is an abundant number, since it is smaller than the sum of its proper divisors (144492284).

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

109050640 is a wasteful number, since it uses less digits than its factorization.

109050640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363146 (or 1363140 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 109050640 is about 10442.7314434491. The cubic root of 109050640 is about 477.7595821847.

The spelling of 109050640 in words is "one hundred nine million, fifty thousand, six hundred forty".