23500020 has 48 divisors (see below), whose sum is σ = 68664960. Its totient is φ = 5993856.

The previous prime is 23500019. The next prime is 23500031. The reversal of 23500020 is 2000532.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 23499969 and 23500005.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7135 + ... + 9894.

It is an arithmetic number, because the mean of its divisors is an integer number (1430520).

Almost surely, 2^23500020 is an apocalyptic number.

23500020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23500020 is an abundant number, since it is smaller than the sum of its proper divisors (45164940).

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

23500020 is a wasteful number, since it uses less digits than its factorization.

23500020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17064 (or 17062 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 12.

The square root of 23500020 is about 4847.6819202584. The cubic root of 23500020 is about 286.4327970566.

Adding to 23500020 its reverse (2000532), we get a palindrome (25500552).

The spelling of 23500020 in words is "twenty-three million, five hundred thousand, twenty".