240120042 has 16 divisors (see below), whose sum is σ = 485637120. Its totient is φ = 79140512.

The previous prime is 240120031. The next prime is 240120059. The reversal of 240120042 is 240021042.

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 7 ways as a sum of consecutive naturals, for example, 224298 + ... + 225365.

It is an arithmetic number, because the mean of its divisors is an integer number (30352320).

Almost surely, 2^240120042 is an apocalyptic number.

240120042 is an abundant number, since it is smaller than the sum of its proper divisors (245517078).

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

240120042 is a wasteful number, since it uses less digits than its factorization.

240120042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449757.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 240120042 is about 15495.8072393793. The cubic root of 240120042 is about 621.5500945890.

Adding to 240120042 its reverse (240021042), we get a palindrome (480141084).

The spelling of 240120042 in words is "two hundred forty million, one hundred twenty thousand, forty-two".