23275320 has 64 divisors (see below), whose sum is σ = 70809120. Its totient is φ = 6119424.

The previous prime is 23275309. The next prime is 23275339. The reversal of 23275320 is 2357232.

It is a super-2 number, since 2×23275320² = 1083481042204800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7432 + ... + 10088.

Almost surely, 2^23275320 is an apocalyptic number.

23275320 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 23275320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35404560).

23275320 is an abundant number, since it is smaller than the sum of its proper divisors (47533800).

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

23275320 is a wasteful number, since it uses less digits than its factorization.

23275320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2744 (or 2740 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 23275320 is about 4824.4502277462. The cubic root of 23275320 is about 285.5169442047.

The spelling of 23275320 in words is "twenty-three million, two hundred seventy-five thousand, three hundred twenty".