522782228 has 6 divisors (see below), whose sum is σ = 914868906. Its totient is φ = 261391112.

The previous prime is 522782191. The next prime is 522782237. The reversal of 522782228 is 822287225.

It can be written as a sum of positive squares in only one way, i.e., 419922064 + 102860164 = 20492^2 + 10142^2 .

It is a junction number, because it is equal to n+sod(n) for n = 522782191 and 522782200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65347775 + ... + 65347782.

It is an arithmetic number, because the mean of its divisors is an integer number (152478151).

Almost surely, 2^522782228 is an apocalyptic number.

It is an amenable number.

522782228 is a deficient number, since it is larger than the sum of its proper divisors (392086678).

522782228 is a wasteful number, since it uses less digits than its factorization.

522782228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130695561 (or 130695559 counting only the distinct ones).

The product of its digits is 71680, while the sum is 38.

The square root of 522782228 is about 22864.4315039758. The cubic root of 522782228 is about 805.5767778525.

The spelling of 522782228 in words is "five hundred twenty-two million, seven hundred eighty-two thousand, two hundred twenty-eight".