531036324 has 360 divisors, whose sum is σ = 1816835328. Its totient is φ = 133902720.

The previous prime is 531036323. The next prime is 531036343. The reversal of 531036324 is 423630135.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (531036323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 6397987 + ... + 6398069.

Almost surely, 2^531036324 is an apocalyptic number.

531036324 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531036324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (908417664).

531036324 is an abundant number, since it is smaller than the sum of its proper divisors (1285799004).

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

531036324 is a wasteful number, since it uses less digits than its factorization.

531036324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 531036324 is about 23044.2253937944. The cubic root of 531036324 is about 809.7943510849.

Adding to 531036324 its reverse (423630135), we get a palindrome (954666459).

The spelling of 531036324 in words is "five hundred thirty-one million, thirty-six thousand, three hundred twenty-four".