23150320 has 60 divisors (see below), whose sum is σ = 55413864. Its totient is φ = 8993920.

The previous prime is 23150317. The next prime is 23150321. The reversal of 23150320 is 2305132.

It is a super-2 number, since 2×23150320² = 1071874632204800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 23150294 and 23150303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23150321) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 176655 + ... + 176785.

Almost surely, 2^23150320 is an apocalyptic number.

23150320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23150320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27706932).

23150320 is an abundant number, since it is smaller than the sum of its proper divisors (32263544).

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

23150320 is a wasteful number, since it uses less digits than its factorization.

23150320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 23150320 is about 4811.4779434182. The cubic root of 23150320 is about 285.0049039887.

Adding to 23150320 its reverse (2305132), we get a palindrome (25455452).

The spelling of 23150320 in words is "twenty-three million, one hundred fifty thousand, three hundred twenty".