240852640 has 144 divisors (see below), whose sum is σ = 683956224. Its totient is φ = 79833600.

The previous prime is 240852631. The next prime is 240852641. The reversal of 240852640 is 46258042.

240852640 is digitally balanced in base 2, 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 (31).

It is not an unprimeable number, because it can be changed into a prime (240852641) 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, 242545 + ... + 243535.

It is an arithmetic number, because the mean of its divisors is an integer number (4749696).

Almost surely, 2^240852640 is an apocalyptic number.

240852640 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 240852640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (341978112).

240852640 is an abundant number, since it is smaller than the sum of its proper divisors (443103584).

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

240852640 is a wasteful number, since it uses less digits than its factorization.

240852640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051 (or 1036 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 240852640 is about 15519.4278245044. The cubic root of 240852640 is about 622.1815621579.

The spelling of 240852640 in words is "two hundred forty million, eight hundred fifty-two thousand, six hundred forty".