538717648 has 40 divisors (see below), whose sum is σ = 1197344000. Its totient is φ = 230014080.

The previous prime is 538717643. The next prime is 538717649. The reversal of 538717648 is 846717835.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538717643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21478 + ... + 39226.

It is an arithmetic number, because the mean of its divisors is an integer number (29933600).

Almost surely, 2^538717648 is an apocalyptic number.

It is an amenable number.

538717648 is an abundant number, since it is smaller than the sum of its proper divisors (658626352).

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

538717648 is a wasteful number, since it uses less digits than its factorization.

538717648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18035 (or 18029 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 49.

The square root of 538717648 is about 23210.2918551232. The cubic root of 538717648 is about 813.6801742662.

The spelling of 538717648 in words is "five hundred thirty-eight million, seven hundred seventeen thousand, six hundred forty-eight".