538236224 has 14 divisors (see below), whose sum is σ = 1068062634. Its totient is φ = 269118080.

The previous prime is 538236221. The next prime is 538236241. The reversal of 538236224 is 422632835.

It can be written as a sum of positive squares in only one way, i.e., 274498624 + 263737600 = 16568^2 + 16240^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538236221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4204907 + ... + 4205034.

Almost surely, 2^538236224 is an apocalyptic number.

It is an amenable number.

538236224 is a deficient number, since it is larger than the sum of its proper divisors (529826410).

538236224 is an equidigital number, since it uses as much as digits as its factorization.

538236224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8409953 (or 8409943 counting only the distinct ones).

The product of its digits is 69120, while the sum is 35.

The square root of 538236224 is about 23199.9186205469. The cubic root of 538236224 is about 813.4377207832.

The spelling of 538236224 in words is "five hundred thirty-eight million, two hundred thirty-six thousand, two hundred twenty-four".