531227424 has 384 divisors, whose sum is σ = 1879718400. Its totient is φ = 130056192.

The previous prime is 531227413. The next prime is 531227453. The reversal of 531227424 is 424722135.

It is a junction number, because it is equal to n+sod(n) for n = 531227391 and 531227400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7277052 + ... + 7277124.

It is an arithmetic number, because the mean of its divisors is an integer number (4895100).

Almost surely, 2^531227424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531227424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (939859200).

531227424 is an abundant number, since it is smaller than the sum of its proper divisors (1348490976).

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

531227424 is a wasteful number, since it uses less digits than its factorization.

531227424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 115 counting only the distinct ones).

The product of its digits is 13440, while the sum is 30.

The square root of 531227424 is about 23048.3713958275. The cubic root of 531227424 is about 809.8914776116.

Adding to 531227424 its reverse (424722135), we get a palindrome (955949559).

The spelling of 531227424 in words is "five hundred thirty-one million, two hundred twenty-seven thousand, four hundred twenty-four".