531940 has 12 divisors (see below), whose sum is σ = 1117116. Its totient is φ = 212768.

The previous prime is 531919. The next prime is 531977. The reversal of 531940 is 49135.

It can be written as a sum of positive squares in 2 ways, for example, as 350464 + 181476 = 592^2 + 426^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13279 + ... + 13318.

It is an arithmetic number, because the mean of its divisors is an integer number (93093).

2⁵³¹⁹⁴⁰ is an apocalyptic number.

It is an amenable number.

531940 is an abundant number, since it is smaller than the sum of its proper divisors (585176).

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

531940 is a wasteful number, since it uses less digits than its factorization.

531940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26606 (or 26604 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 531940 is about 729.3421693554. The cubic root of 531940 is about 81.0253438958.

The spelling of 531940 in words is "five hundred thirty-one thousand, nine hundred forty".