24253240 has 48 divisors (see below), whose sum is σ = 59993640. Its totient is φ = 8817600.

The previous prime is 24253223. The next prime is 24253249. The reversal of 24253240 is 4235242.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24253249) 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 11 ways as a sum of consecutive naturals, for example, 2335 + ... + 7345.

Almost surely, 2^24253240 is an apocalyptic number.

24253240 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 24253240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29996820).

24253240 is an abundant number, since it is smaller than the sum of its proper divisors (35740400).

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

24253240 is a wasteful number, since it uses less digits than its factorization.

24253240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5044 (or 5029 counting only the distinct ones).

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

The square root of 24253240 is about 4924.7578620679. The cubic root of 24253240 is about 289.4609089099.

Adding to 24253240 its reverse (4235242), we get a palindrome (28488482).

It can be divided in two parts, 2425 and 3240, that added together give a palindrome (5665).

The spelling of 24253240 in words is "twenty-four million, two hundred fifty-three thousand, two hundred forty".