538330757440 has 112 divisors (see below), whose sum is σ = 1542135600000. Its totient is φ = 174856292352.

The previous prime is 538330757417. The next prime is 538330757449. The reversal of 538330757440 is 44757033835.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538330757449) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6281815 + ... + 6366934.

Almost surely, 2^538330757440 is an apocalyptic number.

It is an amenable number.

538330757440 is an abundant number, since it is smaller than the sum of its proper divisors (1003804842560).

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

538330757440 is a wasteful number, since it uses less digits than its factorization.

538330757440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12648792 (or 12648782 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 49.

The spelling of 538330757440 in words is "five hundred thirty-eight billion, three hundred thirty million, seven hundred fifty-seven thousand, four hundred forty".