244115723640 has 128 divisors (see below), whose sum is σ = 752049748800. Its totient is φ = 63353978880.

The previous prime is 244115723623. The next prime is 244115723641. The reversal of 244115723640 is 46327511442.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244115723641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1951624 + ... + 2072936.

Almost surely, 2^244115723640 is an apocalyptic number.

244115723640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 244115723640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376024874400).

244115723640 is an abundant number, since it is smaller than the sum of its proper divisors (507934025160).

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

244115723640 is a wasteful number, since it uses less digits than its factorization.

244115723640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121777 (or 121773 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

The spelling of 244115723640 in words is "two hundred forty-four billion, one hundred fifteen million, seven hundred twenty-three thousand, six hundred forty".