538223844 has 24 divisors (see below), whose sum is σ = 1256236128. Its totient is φ = 179353600.

The previous prime is 538223827. The next prime is 538223857. The reversal of 538223844 is 448322835.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63844 + ... + 71780.

It is an arithmetic number, because the mean of its divisors is an integer number (52343172).

Almost surely, 2^538223844 is an apocalyptic number.

It is an amenable number.

538223844 is an abundant number, since it is smaller than the sum of its proper divisors (718012284).

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

538223844 is a wasteful number, since it uses less digits than its factorization.

538223844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13595 (or 13593 counting only the distinct ones).

The product of its digits is 184320, while the sum is 39.

The square root of 538223844 is about 23199.6518077319. The cubic root of 538223844 is about 813.4314840939.

The spelling of 538223844 in words is "five hundred thirty-eight million, two hundred twenty-three thousand, eight hundred forty-four".