23648240 has 120 divisors (see below), whose sum is σ = 69266400. Its totient is φ = 7349760.

The previous prime is 23648231. The next prime is 23648243. The reversal of 23648240 is 4284632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23648243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67586 + ... + 67934.

It is an arithmetic number, because the mean of its divisors is an integer number (577220).

Almost surely, 2^23648240 is an apocalyptic number.

23648240 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 23648240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34633200).

23648240 is an abundant number, since it is smaller than the sum of its proper divisors (45618160).

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

23648240 is a wasteful number, since it uses less digits than its factorization.

23648240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 374 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 23648240 is about 4862.9456094018. The cubic root of 23648240 is about 287.0337344556.

The spelling of 23648240 in words is "twenty-three million, six hundred forty-eight thousand, two hundred forty".