531368 has 16 divisors (see below), whose sum is σ = 1006080. Its totient is φ = 263088.

The previous prime is 531359. The next prime is 531383. The reversal of 531368 is 863135.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 3.

It is an unprimeable number.

531368 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 3 ways as a sum of consecutive naturals, for example, 755 + ... + 1277.

It is an arithmetic number, because the mean of its divisors is an integer number (62880).

2⁵³¹³⁶⁸ is an apocalyptic number.

It is an amenable number.

531368 is a deficient number, since it is larger than the sum of its proper divisors (474712).

531368 is a wasteful number, since it uses less digits than its factorization.

531368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656 (or 652 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

The square root of 531368 is about 728.9499296934. The cubic root of 531368 is about 80.9962910459.

The spelling of 531368 in words is "five hundred thirty-one thousand, three hundred sixty-eight".