538635776 has 80 divisors (see below), whose sum is σ = 1240072416. Its totient is φ = 228950016.

The previous prime is 538635707. The next prime is 538635791. The reversal of 538635776 is 677536835.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 490460 + ... + 491556.

Almost surely, 2^538635776 is an apocalyptic number.

538635776 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538635776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (620036208).

538635776 is an abundant number, since it is smaller than the sum of its proper divisors (701436640).

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

538635776 is a wasteful number, since it uses less digits than its factorization.

538635776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259 (or 1243 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 50.

The square root of 538635776 is about 23208.5280877526. The cubic root of 538635776 is about 813.6389523023.

The spelling of 538635776 in words is "five hundred thirty-eight million, six hundred thirty-five thousand, seven hundred seventy-six".