531818496 has 288 divisors, whose sum is σ = 1742700960. Its totient is φ = 154828800.

The previous prime is 531818491. The next prime is 531818509. The reversal of 531818496 is 694818135.

It is a tau number, because it is divible by the number of its divisors (288).

Its product of digits (207360) is a multiple of the sum of its prime divisors (120).

It is not an unprimeable number, because it can be changed into a prime (531818491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8718306 + ... + 8718366.

It is an arithmetic number, because the mean of its divisors is an integer number (6051045).

Almost surely, 2^531818496 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 531818496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (871350480).

531818496 is an abundant number, since it is smaller than the sum of its proper divisors (1210882464).

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

531818496 is a wasteful number, since it uses less digits than its factorization.

531818496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143 (or 120 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 531818496 is about 23061.1902554920. The cubic root of 531818496 is about 810.1917424445.

The spelling of 531818496 in words is "five hundred thirty-one million, eight hundred eighteen thousand, four hundred ninety-six".