109840423 has 8 divisors (see below), whose sum is σ = 136944000. Its totient is φ = 85589880.

The previous prime is 109840369. The next prime is 109840439. The reversal of 109840423 is 324048901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109840423 - 2²¹ = 107743271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109840453) 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, 713173 + ... + 713326.

It is an arithmetic number, because the mean of its divisors is an integer number (17118000).

Almost surely, 2^109840423 is an apocalyptic number.

109840423 is a deficient number, since it is larger than the sum of its proper divisors (27103577).

109840423 is a wasteful number, since it uses less digits than its factorization.

109840423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426517.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 109840423 is about 10480.4781856555. The cubic root of 109840423 is about 478.9101764820.

The spelling of 109840423 in words is "one hundred nine million, eight hundred forty thousand, four hundred twenty-three".