109642340 has 24 divisors (see below), whose sum is σ = 230481720. Its totient is φ = 43812608.

The previous prime is 109642327. The next prime is 109642343. The reversal of 109642340 is 43246901.

It can be written as a sum of positive squares in 4 ways, for example, as 7268416 + 102373924 = 2696^2 + 10118^2 .

It is not an unprimeable number, because it can be changed into a prime (109642343) 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, 23654 + ... + 27906.

It is an arithmetic number, because the mean of its divisors is an integer number (9603405).

Almost surely, 2^109642340 is an apocalyptic number.

109642340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109642340 is an abundant number, since it is smaller than the sum of its proper divisors (120839380).

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

109642340 is a wasteful number, since it uses less digits than its factorization.

109642340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5551 (or 5549 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 109642340 is about 10471.0238276875. The cubic root of 109642340 is about 478.6221190618.

The spelling of 109642340 in words is "one hundred nine million, six hundred forty-two thousand, three hundred forty".