522216324 has 54 divisors (see below), whose sum is σ = 1535569854. Its totient is φ = 149204160.

The previous prime is 522216323. The next prime is 522216361. The reversal of 522216324 is 423612225.

It is a happy number.

522216324 is a `hidden beast` number, since 5 + 2 + 2 + 21 + 632 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 448084224 + 74132100 = 21168^2 + 8610^2 .

It is not an unprimeable number, because it can be changed into a prime (522216323) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 146257 + ... + 149784.

Almost surely, 2^522216324 is an apocalyptic number.

It is an amenable number.

522216324 is an abundant number, since it is smaller than the sum of its proper divisors (1013353530).

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

522216324 is a wasteful number, since it uses less digits than its factorization.

522216324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296065 (or 296053 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 522216324 is about 22852.0529493523. The cubic root of 522216324 is about 805.2859979384.

Adding to 522216324 its reverse (423612225), we get a palindrome (945828549).

The spelling of 522216324 in words is "five hundred twenty-two million, two hundred sixteen thousand, three hundred twenty-four".