23340520 has 64 divisors (see below), whose sum is σ = 61977600. Its totient is φ = 7741440.

The previous prime is 23340503. The next prime is 23340547. The reversal of 23340520 is 2504332.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7336 + ... + 10024.

It is an arithmetic number, because the mean of its divisors is an integer number (968400).

Almost surely, 2^23340520 is an apocalyptic number.

23340520 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 23340520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30988800).

23340520 is an abundant number, since it is smaller than the sum of its proper divisors (38637080).

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

23340520 is a wasteful number, since it uses less digits than its factorization.

23340520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2738 (or 2734 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 23340520 is about 4831.2027487987. The cubic root of 23340520 is about 285.7832971392.

Adding to 23340520 its reverse (2504332), we get a palindrome (25844852).

The spelling of 23340520 in words is "twenty-three million, three hundred forty thousand, five hundred twenty".