23030220 has 24 divisors (see below), whose sum is σ = 64484784. Its totient is φ = 6141376.

The previous prime is 23030213. The next prime is 23030239. The reversal of 23030220 is 2203032.

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

It is a zygodrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 23030196 and 23030205.

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, 191859 + ... + 191978.

It is an arithmetic number, because the mean of its divisors is an integer number (2686866).

Almost surely, 2^23030220 is an apocalyptic number.

23030220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23030220 is an abundant number, since it is smaller than the sum of its proper divisors (41454564).

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

23030220 is a wasteful number, since it uses less digits than its factorization.

23030220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383849 (or 383847 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 23030220 is about 4798.9811418675. The cubic root of 23030220 is about 284.5111966049.

Adding to 23030220 its reverse (2203032), we get a palindrome (25233252).

The spelling of 23030220 in words is "twenty-three million, thirty thousand, two hundred twenty".