538908220 has 12 divisors (see below), whose sum is σ = 1131707304. Its totient is φ = 215563280.

The previous prime is 538908203. The next prime is 538908233. The reversal of 538908220 is 22809835.

It is a self number, because there is not a number n which added to its sum of digits gives 538908220.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13472686 + ... + 13472725.

It is an arithmetic number, because the mean of its divisors is an integer number (94308942).

Almost surely, 2^538908220 is an apocalyptic number.

It is an amenable number.

538908220 is an abundant number, since it is smaller than the sum of its proper divisors (592799084).

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

538908220 is a wasteful number, since it uses less digits than its factorization.

538908220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26945420 (or 26945418 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 538908220 is about 23214.3968261077. The cubic root of 538908220 is about 813.7761097267.

The spelling of 538908220 in words is "five hundred thirty-eight million, nine hundred eight thousand, two hundred twenty".