240640126446 has 8 divisors (see below), whose sum is σ = 481280252904. Its totient is φ = 80213375480.

The previous prime is 240640126417. The next prime is 240640126453. The reversal of 240640126446 is 644621046042.

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

240640126446 is an admirable number.

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, 20053343865 + ... + 20053343876.

It is an arithmetic number, because the mean of its divisors is an integer number (60160031613).

Almost surely, 2^240640126446 is an apocalyptic number.

240640126446 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

240640126446 is a wasteful number, since it uses less digits than its factorization.

240640126446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40106687746.

The product of its (nonzero) digits is 221184, while the sum is 39.

The spelling of 240640126446 in words is "two hundred forty billion, six hundred forty million, one hundred twenty-six thousand, four hundred forty-six".