23956240 has 80 divisors (see below), whose sum is σ = 69459840. Its totient is φ = 7464960.

The previous prime is 23956237. The next prime is 23956241. The reversal of 23956240 is 4265932.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (23956241) by changing a digit.

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, 4216 + ... + 8104.

It is an arithmetic number, because the mean of its divisors is an integer number (868248).

Almost surely, 2^23956240 is an apocalyptic number.

23956240 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 23956240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34729920).

23956240 is an abundant number, since it is smaller than the sum of its proper divisors (45503600).

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

23956240 is a wasteful number, since it uses less digits than its factorization.

23956240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3920 (or 3914 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 23956240 is about 4894.5112115512. The cubic root of 23956240 is about 288.2744939540.

The spelling of 23956240 in words is "twenty-three million, nine hundred fifty-six thousand, two hundred forty".