244044406640 has 20 divisors (see below), whose sum is σ = 567403245624. Its totient is φ = 97617762624.

The previous prime is 244044406637. The next prime is 244044406651. The reversal of 244044406640 is 46604440442.

244044406640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 244044406594 and 244044406603.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1525277462 + ... + 1525277621.

Almost surely, 2^244044406640 is an apocalyptic number.

244044406640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244044406640 is an abundant number, since it is smaller than the sum of its proper divisors (323358838984).

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

244044406640 is a wasteful number, since it uses less digits than its factorization.

244044406640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3050555096 (or 3050555090 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 38.

The spelling of 244044406640 in words is "two hundred forty-four billion, forty-four million, four hundred six thousand, six hundred forty".