240340242 has 8 divisors (see below), whose sum is σ = 480680496. Its totient is φ = 80113412.

The previous prime is 240340231. The next prime is 240340273. The reversal of 240340242 is 242043042.

It is a sphenic number, since it is the product of 3 distinct primes.

240340242 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 20028348 + ... + 20028359.

It is an arithmetic number, because the mean of its divisors is an integer number (60085062).

Almost surely, 2^240340242 is an apocalyptic number.

240340242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

240340242 is a wasteful number, since it uses less digits than its factorization.

240340242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40056712.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 240340242 is about 15502.9107589510. The cubic root of 240340242 is about 621.7400322468.

Adding to 240340242 its reverse (242043042), we get a palindrome (482383284).

The spelling of 240340242 in words is "two hundred forty million, three hundred forty thousand, two hundred forty-two".