538396768 has 192 divisors, whose sum is σ = 1415715840. Its totient is φ = 195581952.

The previous prime is 538396723. The next prime is 538396799. The reversal of 538396768 is 867693835.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2047005 + ... + 2047267.

It is an arithmetic number, because the mean of its divisors is an integer number (7373520).

Almost surely, 2^538396768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538396768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (707857920).

538396768 is an abundant number, since it is smaller than the sum of its proper divisors (877319072).

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

538396768 is a wasteful number, since it uses less digits than its factorization.

538396768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349 (or 341 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 55.

The square root of 538396768 is about 23203.3783747109. The cubic root of 538396768 is about 813.5185895898.

The spelling of 538396768 in words is "five hundred thirty-eight million, three hundred ninety-six thousand, seven hundred sixty-eight".