538681716 has 36 divisors (see below), whose sum is σ = 1362457824. Its totient is φ = 179456400.

The previous prime is 538681697. The next prime is 538681723. The reversal of 538681716 is 617186835.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82201 + ... + 88511.

Almost surely, 2^538681716 is an apocalyptic number.

It is an amenable number.

538681716 is an abundant number, since it is smaller than the sum of its proper divisors (823776108).

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

538681716 is a wasteful number, since it uses less digits than its factorization.

538681716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8692 (or 8687 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 538681716 is about 23209.5177890451. The cubic root of 538681716 is about 813.6620832766.

The spelling of 538681716 in words is "five hundred thirty-eight million, six hundred eighty-one thousand, seven hundred sixteen".