240687720 has 512 divisors, whose sum is σ = 1032192000. Its totient is φ = 48522240.

The previous prime is 240687703. The next prime is 240687721. The reversal of 240687720 is 27786042.

240687720 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240687721) 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 127 ways as a sum of consecutive naturals, for example, 3046641 + ... + 3046719.

It is an arithmetic number, because the mean of its divisors is an integer number (2016000).

Almost surely, 2^240687720 is an apocalyptic number.

240687720 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 240687720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (516096000).

240687720 is an abundant number, since it is smaller than the sum of its proper divisors (791504280).

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

240687720 is a wasteful number, since it uses less digits than its factorization.

240687720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 240687720 is about 15514.1135744199. The cubic root of 240687720 is about 622.0395201021.

The spelling of 240687720 in words is "two hundred forty million, six hundred eighty-seven thousand, seven hundred twenty".