531430 has 16 divisors (see below), whose sum is σ = 1007280. Its totient is φ = 201312.

The previous prime is 531383. The next prime is 531457. The reversal of 531430 is 34135.

531430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 9 and base 14.

It is a zygodrome in base 9.

It is a congruent number.

It is an unprimeable number.

531430 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1209 + ... + 1588.

It is an arithmetic number, because the mean of its divisors is an integer number (62955).

2⁵³¹⁴³⁰ is an apocalyptic number.

531430 is a deficient number, since it is larger than the sum of its proper divisors (475850).

531430 is a wasteful number, since it uses less digits than its factorization.

531430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2823.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 531430 is about 728.9924553793. The cubic root of 531430 is about 80.9994411382. Note that the first 3 decimals are identical.

Adding to 531430 its reverse (34135), we get a palindrome (565565).

It can be divided in two parts, 531 and 430, that added together give a square (961 = 31²).

The spelling of 531430 in words is "five hundred thirty-one thousand, four hundred thirty".