531040 has 24 divisors (see below), whose sum is σ = 1254960. Its totient is φ = 212352.

The previous prime is 531023. The next prime is 531043. The reversal of 531040 is 40135.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 531040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1500 + ... + 1819.

It is an arithmetic number, because the mean of its divisors is an integer number (52290).

2⁵³¹⁰⁴⁰ is an apocalyptic number.

It is an amenable number.

531040 is an abundant number, since it is smaller than the sum of its proper divisors (723920).

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

531040 is a wasteful number, since it uses less digits than its factorization.

531040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3334 (or 3326 counting only the distinct ones).

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

The square root of 531040 is about 728.7249138049. The cubic root of 531040 is about 80.9796219631.

Adding to 531040 its reverse (40135), we get a palindrome (571175).

The spelling of 531040 in words is "five hundred thirty-one thousand, forty".