240216142 has 4 divisors (see below), whose sum is σ = 360324216. Its totient is φ = 120108070.

The previous prime is 240216139. The next prime is 240216143. The reversal of 240216142 is 241612042.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240216143) by changing a digit.

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 as a sum of consecutive naturals, namely, 60054034 + ... + 60054037.

It is an arithmetic number, because the mean of its divisors is an integer number (90081054).

Almost surely, 2^240216142 is an apocalyptic number.

240216142 is a deficient number, since it is larger than the sum of its proper divisors (120108074).

240216142 is a wasteful number, since it uses less digits than its factorization.

240216142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120108073.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 240216142 is about 15498.9077679687. The cubic root of 240216142 is about 621.6330017284.

Adding to 240216142 its reverse (241612042), we get a palindrome (481828184).

The spelling of 240216142 in words is "two hundred forty million, two hundred sixteen thousand, one hundred forty-two".