240143242 has 8 divisors (see below), whose sum is σ = 379173600. Its totient is φ = 113752044.

The previous prime is 240143237. The next prime is 240143243. The reversal of 240143242 is 242341042.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (240143243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3159742 + ... + 3159817.

It is an arithmetic number, because the mean of its divisors is an integer number (47396700).

Almost surely, 2^240143242 is an apocalyptic number.

240143242 is a deficient number, since it is larger than the sum of its proper divisors (139030358).

240143242 is a wasteful number, since it uses less digits than its factorization.

240143242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6319580.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 240143242 is about 15496.5558108891. Note that the first 3 decimals coincide. The cubic root of 240143242 is about 621.5701116572.

Adding to 240143242 its reverse (242341042), we get a palindrome (482484284).

The spelling of 240143242 in words is "two hundred forty million, one hundred forty-three thousand, two hundred forty-two".