240688242 has 12 divisors (see below), whose sum is σ = 521491230. Its totient is φ = 80229408.

The previous prime is 240688223. The next prime is 240688271. The reversal of 240688242 is 242886042.

It is a happy number.

240688242 is a `hidden beast` number, since 2 + 406 + 8 + 8 + 242 = 666.

240688242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 127712601 + 112975641 = 11301^2 + 10629^2 .

It is a junction number, because it is equal to n+sod(n) for n = 240688197 and 240688206.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6685767 + ... + 6685802.

Almost surely, 2^240688242 is an apocalyptic number.

240688242 is an abundant number, since it is smaller than the sum of its proper divisors (280802988).

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

240688242 is a wasteful number, since it uses less digits than its factorization.

240688242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13371577 (or 13371574 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The square root of 240688242 is about 15514.1303978019. The cubic root of 240688242 is about 622.0399697918.

The spelling of 240688242 in words is "two hundred forty million, six hundred eighty-eight thousand, two hundred forty-two".