23820530 has 16 divisors (see below), whose sum is σ = 42963264. Its totient is φ = 9509040.

The previous prime is 23820523. The next prime is 23820539. The reversal of 23820530 is 3502832.

It is a junction number, because it is equal to n+sod(n) for n = 23820496 and 23820505.

It is not an unprimeable number, because it can be changed into a prime (23820539) 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, 3515 + ... + 7745.

It is an arithmetic number, because the mean of its divisors is an integer number (2685204).

Almost surely, 2^23820530 is an apocalyptic number.

23820530 is a deficient number, since it is larger than the sum of its proper divisors (19142734).

23820530 is a wasteful number, since it uses less digits than its factorization.

23820530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4801.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 23820530 is about 4880.6280333580. The cubic root of 23820530 is about 287.7291128943.

The spelling of 23820530 in words is "twenty-three million, eight hundred twenty thousand, five hundred thirty".