538628664 has 64 divisors (see below), whose sum is σ = 1574749440. Its totient is φ = 150312960.

The previous prime is 538628659. The next prime is 538628677. The reversal of 538628664 is 466826835.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 30057 + ... + 44504.

It is an arithmetic number, because the mean of its divisors is an integer number (24605460).

Almost surely, 2^538628664 is an apocalyptic number.

It is an amenable number.

538628664 is an abundant number, since it is smaller than the sum of its proper divisors (1036120776).

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

538628664 is a wasteful number, since it uses less digits than its factorization.

538628664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74620 (or 74616 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 48.

The square root of 538628664 is about 23208.3748677067. The cubic root of 538628664 is about 813.6353712642.

It can be divided in two parts, 53862 and 8664, that added together give a palindrome (62526).

The spelling of 538628664 in words is "five hundred thirty-eight million, six hundred twenty-eight thousand, six hundred sixty-four".