109040 has 40 divisors (see below), whose sum is σ = 267840. Its totient is φ = 41216.

The previous prime is 109037. The next prime is 109049. The reversal of 109040 is 40901.

109040 = T₁₁₃ + T₁₁₄ + ... + T₁₂₇.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2297 + ... + 2343.

It is an arithmetic number, because the mean of its divisors is an integer number (6696).

2¹⁰⁹⁰⁴⁰ is an apocalyptic number.

109040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133920).

109040 is an abundant number, since it is smaller than the sum of its proper divisors (158800).

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

109040 is a wasteful number, since it uses less digits than its factorization.

109040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 109040 is about 330.2120530810. The cubic root of 109040 is about 47.7744043449.

Adding to 109040 its reverse (40901), we get a palindrome (149941).

The spelling of 109040 in words is "one hundred nine thousand, forty".