538205508 has 36 divisors (see below), whose sum is σ = 1404352768. Its totient is φ = 173614320.

The previous prime is 538205443. The next prime is 538205527. The reversal of 538205508 is 805502835.

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 240016 + ... + 242247.

Almost surely, 2^538205508 is an apocalyptic number.

It is an amenable number.

538205508 is an abundant number, since it is smaller than the sum of its proper divisors (866147260).

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

538205508 is a wasteful number, since it uses less digits than its factorization.

538205508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482304 (or 482299 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 538205508 is about 23199.2566260214. The cubic root of 538205508 is about 813.4222467669.

The spelling of 538205508 in words is "five hundred thirty-eight million, two hundred five thousand, five hundred eight".