23640054 has 8 divisors (see below), whose sum is σ = 47280120. Its totient is φ = 7880016.

The previous prime is 23640049. The next prime is 23640059. The reversal of 23640054 is 45004632.

It is an interprime number because it is at equal distance from previous prime (23640049) and next prime (23640059).

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

23640054 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23640059) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1969999 + ... + 1970010.

It is an arithmetic number, because the mean of its divisors is an integer number (5910015).

Almost surely, 2^23640054 is an apocalyptic number.

23640054 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

23640054 is a wasteful number, since it uses less digits than its factorization.

23640054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3940014.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 23640054 is about 4862.1038656121. The cubic root of 23640054 is about 287.0006110700. Note that the first 3 decimals are identical.

Adding to 23640054 its reverse (45004632), we get a palindrome (68644686).

The spelling of 23640054 in words is "twenty-three million, six hundred forty thousand, fifty-four".