538881222 has 32 divisors (see below), whose sum is σ = 1178674560. Its totient is φ = 162889920.

The previous prime is 538881169. The next prime is 538881229. The reversal of 538881222 is 222188835.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538881229) 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 15 ways as a sum of consecutive naturals, for example, 17013 + ... + 36975.

It is an arithmetic number, because the mean of its divisors is an integer number (36833580).

Almost surely, 2^538881222 is an apocalyptic number.

538881222 is an abundant number, since it is smaller than the sum of its proper divisors (639793338).

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

538881222 is a wasteful number, since it uses less digits than its factorization.

538881222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20388.

The product of its digits is 61440, while the sum is 39.

The square root of 538881222 is about 23213.8153262233. The cubic root of 538881222 is about 813.7625200940.

The spelling of 538881222 in words is "five hundred thirty-eight million, eight hundred eighty-one thousand, two hundred twenty-two".