23500380 has 72 divisors (see below), whose sum is σ = 67734576. Its totient is φ = 6087680.

The previous prime is 23500369. The next prime is 23500381. The reversal of 23500380 is 8300532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23500381) 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 23 ways as a sum of consecutive naturals, for example, 100744 + ... + 100976.

It is an arithmetic number, because the mean of its divisors is an integer number (940758).

Almost surely, 2^23500380 is an apocalyptic number.

23500380 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 23500380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33867288).

23500380 is an abundant number, since it is smaller than the sum of its proper divisors (44234196).

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

23500380 is a wasteful number, since it uses less digits than its factorization.

23500380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 23500380 is about 4847.7190512652. The cubic root of 23500380 is about 286.4342596835.

The spelling of 23500380 in words is "twenty-three million, five hundred thousand, three hundred eighty".