240404203142 has 8 divisors (see below), whose sum is σ = 362223374016. Its totient is φ = 119663078472.

The previous prime is 240404203007. The next prime is 240404203177. The reversal of 240404203142 is 241302404042.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269510993 + ... + 269511884.

It is an arithmetic number, because the mean of its divisors is an integer number (45277921752).

Almost surely, 2^240404203142 is an apocalyptic number.

240404203142 is a deficient number, since it is larger than the sum of its proper divisors (121819170874).

240404203142 is a wasteful number, since it uses less digits than its factorization.

240404203142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539023102.

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 240404203142 its reverse (241302404042), we get a palindrome (481706607184).

Subtracting 240404203142 from its reverse (241302404042), we obtain a square (898200900 = 29970²).

The spelling of 240404203142 in words is "two hundred forty billion, four hundred four million, two hundred three thousand, one hundred forty-two".