23942109 has 8 divisors (see below), whose sum is σ = 33603040. Its totient is φ = 15121296.

The previous prime is 23942089. The next prime is 23942111. The reversal of 23942109 is 90124932.

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

It is not a de Polignac number, because 23942109 - 2⁵ = 23942077 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 (23942119) 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, 209962 + ... + 210075.

It is an arithmetic number, because the mean of its divisors is an integer number (4200380).

Almost surely, 2^23942109 is an apocalyptic number.

It is an amenable number.

23942109 is a deficient number, since it is larger than the sum of its proper divisors (9660931).

23942109 is a wasteful number, since it uses less digits than its factorization.

23942109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420059.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 23942109 is about 4893.0674428215. The cubic root of 23942109 is about 288.2178015836.

The spelling of 23942109 in words is "twenty-three million, nine hundred forty-two thousand, one hundred nine".