244261560640 has 56 divisors (see below), whose sum is σ = 595834405992. Its totient is φ = 95321579520.

The previous prime is 244261560601. The next prime is 244261560667. The reversal of 244261560640 is 46065162442.

It is a happy number.

244261560640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1780164864 + 242481395776 = 42192^2 + 492424^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 244261560593 and 244261560602.

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 7 ways as a sum of consecutive naturals, for example, 9295629 + ... + 9321868.

It is an arithmetic number, because the mean of its divisors is an integer number (10639900107).

Almost surely, 2^244261560640 is an apocalyptic number.

244261560640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

244261560640 is an abundant number, since it is smaller than the sum of its proper divisors (351572845352).

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

244261560640 is a wasteful number, since it uses less digits than its factorization.

244261560640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18617555 (or 18617545 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 40.

The spelling of 244261560640 in words is "two hundred forty-four billion, two hundred sixty-one million, five hundred sixty thousand, six hundred forty".