531480 has 64 divisors (see below), whose sum is σ = 1647360. Its totient is φ = 137088.

The previous prime is 531457. The next prime is 531481. The reversal of 531480 is 84135.

531480 is nontrivially palindromic in base 16.

It is a super-3 number, since 3×531480³ = 450383045933376000, which contains 333 as substring.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 11.

It is a nialpdrome in base 15.

It is a zygodrome in base 11.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 531480.

It is not an unprimeable number, because it can be changed into a prime (531481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5109 + ... + 5211.

It is an arithmetic number, because the mean of its divisors is an integer number (25740).

2⁵³¹⁴⁸⁰ 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 531480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (823680).

531480 is an abundant number, since it is smaller than the sum of its proper divisors (1115880).

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

531480 is a wasteful number, since it uses less digits than its factorization.

531480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 531480 is about 729.0267484805. The cubic root of 531480 is about 81.0019813568.

The spelling of 531480 in words is "five hundred thirty-one thousand, four hundred eighty".