531313224 has 32 divisors (see below), whose sum is σ = 1430459520. Its totient is φ = 163480896.

The previous prime is 531313217. The next prime is 531313241. The reversal of 531313224 is 422313135.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 531313194 and 531313203.

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, 851152 + ... + 851775.

It is an arithmetic number, because the mean of its divisors is an integer number (44701860).

Almost surely, 2^531313224 is an apocalyptic number.

It is an amenable number.

531313224 is an abundant number, since it is smaller than the sum of its proper divisors (899146296).

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

531313224 is a wasteful number, since it uses less digits than its factorization.

531313224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702949 (or 1702945 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 531313224 is about 23050.2326235550. The cubic root of 531313224 is about 809.9350778632.

Adding to 531313224 its reverse (422313135), we get a palindrome (953626359).

The spelling of 531313224 in words is "five hundred thirty-one million, three hundred thirteen thousand, two hundred twenty-four".