240140421201254 has 32 divisors (see below), whose sum is σ = 418498957019136. Its totient is φ = 101210560607520.

The previous prime is 240140421201169. The next prime is 240140421201299. The reversal of 240140421201254 is 452102124041042.

It is a self number, because there is not a number n which added to its sum of digits gives 240140421201254.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22798034 + ... + 31623269.

It is an arithmetic number, because the mean of its divisors is an integer number (13078092406848).

Almost surely, 2^{240140421201254} is an apocalyptic number.

240140421201254 is a deficient number, since it is larger than the sum of its proper divisors (178358535817882).

240140421201254 is a wasteful number, since it uses less digits than its factorization.

240140421201254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54426540.

The product of its (nonzero) digits is 20480, while the sum is 32.

Adding to 240140421201254 its reverse (452102124041042), we get a palindrome (692242545242296).

The spelling of 240140421201254 in words is "two hundred forty trillion, one hundred forty billion, four hundred twenty-one million, two hundred one thousand, two hundred fifty-four".