538648884 has 36 divisors (see below), whose sum is σ = 1380768480. Its totient is φ = 177019920.

The previous prime is 538648883. The next prime is 538648909. The reversal of 538648884 is 488846835.

538648884 is a `hidden beast` number, since 5 + 3 + 86 + 488 + 84 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 538648884.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538648883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102814 + ... + 107925.

It is an arithmetic number, because the mean of its divisors is an integer number (38354680).

Almost surely, 2^538648884 is an apocalyptic number.

It is an amenable number.

538648884 is an abundant number, since it is smaller than the sum of its proper divisors (842119596).

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

538648884 is a wasteful number, since it uses less digits than its factorization.

538648884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210820 (or 210815 counting only the distinct ones).

The product of its digits is 5898240, while the sum is 54.

The square root of 538648884 is about 23208.8104822285. The cubic root of 538648884 is about 813.6455523670.

The spelling of 538648884 in words is "five hundred thirty-eight million, six hundred forty-eight thousand, eight hundred eighty-four".