23640060 has 96 divisors (see below), whose sum is σ = 69092352. Its totient is φ = 6035200.

The previous prime is 23640059. The next prime is 23640083. The reversal of 23640060 is 6004632.

23640060 = T₁₉₉ + T₂₀₀ + ... + T₅₃₀.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234010 + ... + 234110.

It is an arithmetic number, because the mean of its divisors is an integer number (719712).

Almost surely, 2^23640060 is an apocalyptic number.

23640060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23640060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34546176).

23640060 is an abundant number, since it is smaller than the sum of its proper divisors (45452292).

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

23640060 is a wasteful number, since it uses less digits than its factorization.

23640060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 23640060 is about 4862.1044826289. The cubic root of 23640060 is about 287.0006353509. Note that the first 3 decimals are identical.

Adding to 23640060 its reverse (6004632), we get a palindrome (29644692).

The spelling of 23640060 in words is "twenty-three million, six hundred forty thousand, sixty".