531344120 has 128 divisors (see below), whose sum is σ = 1311552000. Its totient is φ = 193052160.

The previous prime is 531344111. The next prime is 531344167. The reversal of 531344120 is 21443135.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2320166 + ... + 2320394.

It is an arithmetic number, because the mean of its divisors is an integer number (10246500).

Almost surely, 2^531344120 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 531344120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (655776000).

531344120 is an abundant number, since it is smaller than the sum of its proper divisors (780207880).

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

531344120 is a wasteful number, since it uses less digits than its factorization.

531344120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 531344120 is about 23050.9028022765. The cubic root of 531344120 is about 809.9507768696.

Adding to 531344120 its reverse (21443135), we get a palindrome (552787255).

The spelling of 531344120 in words is "five hundred thirty-one million, three hundred forty-four thousand, one hundred twenty".