23789520 has 240 divisors, whose sum is σ = 88208640. Its totient is φ = 5723136.

The previous prime is 23789509. The next prime is 23789531. The reversal of 23789520 is 2598732.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23789509) and next prime (23789531).

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 506137 + ... + 506183.

It is an arithmetic number, because the mean of its divisors is an integer number (367536).

Almost surely, 2^23789520 is an apocalyptic number.

23789520 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 23789520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44104320).

23789520 is an abundant number, since it is smaller than the sum of its proper divisors (64419120).

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

23789520 is a wasteful number, since it uses less digits than its factorization.

23789520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 23789520 is about 4877.4501535126. The cubic root of 23789520 is about 287.6042016740.

The spelling of 23789520 in words is "twenty-three million, seven hundred eighty-nine thousand, five hundred twenty".