24242740 has 24 divisors (see below), whose sum is σ = 51002280. Its totient is φ = 9679488.

The previous prime is 24242719. The next prime is 24242749. The reversal of 24242740 is 4724242.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2471184 + 21771556 = 1572^2 + 4666^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24242749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21306 + ... + 22414.

It is an arithmetic number, because the mean of its divisors is an integer number (2125095).

Almost surely, 2^24242740 is an apocalyptic number.

24242740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24242740 is an abundant number, since it is smaller than the sum of its proper divisors (26759540).

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

24242740 is a wasteful number, since it uses less digits than its factorization.

24242740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2211 (or 2209 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 25.

The square root of 24242740 is about 4923.6917044023. The cubic root of 24242740 is about 289.4191305982.

Adding to 24242740 its reverse (4724242), we get a palindrome (28966982).

The spelling of 24242740 in words is "twenty-four million, two hundred forty-two thousand, seven hundred forty".