23245240 has 48 divisors (see below), whose sum is σ = 54245880. Its totient is φ = 8964480.

The previous prime is 23245219. The next prime is 23245247. The reversal of 23245240 is 4254232.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23245247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33295 + ... + 33985.

Almost surely, 2^23245240 is an apocalyptic number.

23245240 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 23245240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27122940).

23245240 is an abundant number, since it is smaller than the sum of its proper divisors (31000640).

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

23245240 is a wasteful number, since it uses less digits than its factorization.

23245240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760 (or 727 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 23245240 is about 4821.3317662239. The cubic root of 23245240 is about 285.3938946673.

Adding to 23245240 its reverse (4254232), we get a palindrome (27499472).

The spelling of 23245240 in words is "twenty-three million, two hundred forty-five thousand, two hundred forty".