23272320 has 256 divisors, whose sum is σ = 84602880. Its totient is φ = 5406720.

The previous prime is 23272313. The next prime is 23272339. The reversal of 23272320 is 2327232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 750705 + ... + 750735.

It is an arithmetic number, because the mean of its divisors is an integer number (330480).

Almost surely, 2^23272320 is an apocalyptic number.

23272320 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 23272320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42301440).

23272320 is an abundant number, since it is smaller than the sum of its proper divisors (61330560).

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

23272320 is a wasteful number, since it uses less digits than its factorization.

23272320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 23272320 is about 4824.1393014713. The cubic root of 23272320 is about 285.5046767381.

Adding to 23272320 its reverse (2327232), we get a palindrome (25599552).

The spelling of 23272320 in words is "twenty-three million, two hundred seventy-two thousand, three hundred twenty".