240117542 has 24 divisors (see below), whose sum is σ = 422707896. Its totient is φ = 101992128.

The previous prime is 240117511. The next prime is 240117557. The reversal of 240117542 is 245711042.

240117542 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×240117542² = 115312867952243528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 233 + ... + 21915.

It is an arithmetic number, because the mean of its divisors is an integer number (17612829).

Almost surely, 2^240117542 is an apocalyptic number.

240117542 is a deficient number, since it is larger than the sum of its proper divisors (182590354).

240117542 is a wasteful number, since it uses less digits than its factorization.

240117542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21812 (or 21805 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 240117542 is about 15495.7265721876. The cubic root of 240117542 is about 621.5479375004.

Adding to 240117542 its reverse (245711042), we get a palindrome (485828584).

The spelling of 240117542 in words is "two hundred forty million, one hundred seventeen thousand, five hundred forty-two".