531040000 has 90 divisors (see below), whose sum is σ = 1324982120. Its totient is φ = 212352000.

The previous prime is 531039979. The next prime is 531040001. The reversal of 531040000 is 40135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531040001) 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 9 ways as a sum of consecutive naturals, for example, 158341 + ... + 161659.

Almost surely, 2^531040000 is an apocalyptic number.

531040000 is a gapful number since it is divisible by the number (50) 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 531040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (662491060).

531040000 is an abundant number, since it is smaller than the sum of its proper divisors (793942120).

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

531040000 is an frugal number, since it uses more digits than its factorization.

531040000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3355 (or 3326 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 531040000 is about 23044.3051533345. The cubic root of 531040000 is about 809.7962196308.

Adding to 531040000 its reverse (40135), we get a palindrome (531080135).

The spelling of 531040000 in words is "five hundred thirty-one million, forty thousand".