444520142465240 has 64 divisors (see below), whose sum is σ = 1044316950163200. Its totient is φ = 169969559329152.

The previous prime is 444520142465173. The next prime is 444520142465249. The reversal of 444520142465240 is 42564241025444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444520142465249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151547342 + ... + 154452701.

It is an arithmetic number, because the mean of its divisors is an integer number (16317452346300).

Almost surely, 2^{444520142465240} is an apocalyptic number.

444520142465240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

444520142465240 is an abundant number, since it is smaller than the sum of its proper divisors (599796807697960).

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

444520142465240 is a wasteful number, since it uses less digits than its factorization.

444520142465240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306001656 (or 306001652 counting only the distinct ones).

The product of its (nonzero) digits is 4915200, while the sum is 47.

The spelling of 444520142465240 in words is "four hundred forty-four trillion, five hundred twenty billion, one hundred forty-two million, four hundred sixty-five thousand, two hundred forty".