538931568 has 40 divisors (see below), whose sum is σ = 1591132288. Its totient is φ = 153980352.

The previous prime is 538931567. The next prime is 538931573. The reversal of 538931568 is 865139835.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538931567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 801646 + ... + 802317.

Almost surely, 2^538931568 is an apocalyptic number.

It is an amenable number.

538931568 is an abundant number, since it is smaller than the sum of its proper divisors (1052200720).

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

538931568 is a wasteful number, since it uses less digits than its factorization.

538931568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603981 (or 1603975 counting only the distinct ones).

The product of its digits is 777600, while the sum is 48.

The square root of 538931568 is about 23214.8996982541. The cubic root of 538931568 is about 813.7878617403.

The spelling of 538931568 in words is "five hundred thirty-eight million, nine hundred thirty-one thousand, five hundred sixty-eight".