23000520 has 32 divisors (see below), whose sum is σ = 69001920. Its totient is φ = 6133440.

The previous prime is 23000513. The next prime is 23000533. The reversal of 23000520 is 2500032.

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 = 23000496 and 23000505.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95716 + ... + 95955.

It is an arithmetic number, because the mean of its divisors is an integer number (2156310).

Almost surely, 2^23000520 is an apocalyptic number.

23000520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23000520 is an abundant number, since it is smaller than the sum of its proper divisors (46001400).

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

23000520 is a wasteful number, since it uses less digits than its factorization.

23000520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191685 (or 191681 counting only the distinct ones).

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

The square root of 23000520 is about 4795.8857367540. The cubic root of 23000520 is about 284.3888411731.

Adding to 23000520 its reverse (2500032), we get a palindrome (25500552).

The spelling of 23000520 in words is "twenty-three million, five hundred twenty", and thus it is an aban number.