23023320 has 32 divisors (see below), whose sum is σ = 69070320. Its totient is φ = 6139520.

The previous prime is 23023309. The next prime is 23023327. The reversal of 23023320 is 2332032.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 23023320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23023327) 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, 95811 + ... + 96050.

Almost surely, 2^23023320 is an apocalyptic number.

23023320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23023320 is an abundant number, since it is smaller than the sum of its proper divisors (46047000).

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

23023320 is a wasteful number, since it uses less digits than its factorization.

23023320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191875 (or 191871 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 23023320 is about 4798.2621854167. The cubic root of 23023320 is about 284.4827799804.

Adding to 23023320 its reverse (2332032), we get a palindrome (25355352).

The spelling of 23023320 in words is "twenty-three million, twenty-three thousand, three hundred twenty".