4244264448640 has 64 divisors (see below), whose sum is σ = 10211071975560. Its totient is φ = 1686892326912.

The previous prime is 4244264448623. The next prime is 4244264448643. The reversal of 4244264448640 is 468444624424.

It can be written as a sum of positive squares in 4 ways, for example, as 3036041395776 + 1208223052864 = 1742424^2 + 1099192^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (4244264448643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21019467 + ... + 21220426.

Almost surely, 2^{4244264448640} is an apocalyptic number.

4244264448640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4244264448640 is an abundant number, since it is smaller than the sum of its proper divisors (5966807526920).

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

4244264448640 is a wasteful number, since it uses less digits than its factorization.

4244264448640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42240069 (or 42240057 counting only the distinct ones).

The product of its (nonzero) digits is 18874368, while the sum is 52.

The spelling of 4244264448640 in words is "four trillion, two hundred forty-four billion, two hundred sixty-four million, four hundred forty-eight thousand, six hundred forty".