23421118 has 12 divisors (see below), whose sum is σ = 40867632. Its totient is φ = 10037580.

The previous prime is 23421113. The next prime is 23421131. The reversal of 23421118 is 81112432.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23421113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119398 + ... + 119593.

It is an arithmetic number, because the mean of its divisors is an integer number (3405636).

Almost surely, 2^23421118 is an apocalyptic number.

23421118 is a deficient number, since it is larger than the sum of its proper divisors (17446514).

23421118 is a wasteful number, since it uses less digits than its factorization.

23421118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239007 (or 239000 counting only the distinct ones).

The product of its digits is 384, while the sum is 22.

The square root of 23421118 is about 4839.5369613218. The cubic root of 23421118 is about 286.1118687998. Note that the first 3 decimals are identical.

The spelling of 23421118 in words is "twenty-three million, four hundred twenty-one thousand, one hundred eighteen".