531448 has 8 divisors (see below), whose sum is σ = 996480. Its totient is φ = 265720.

The previous prime is 531383. The next prime is 531457. The reversal of 531448 is 844135.

531448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

531448 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 as a sum of consecutive naturals, namely, 33208 + ... + 33223.

It is an arithmetic number, because the mean of its divisors is an integer number (124560).

531448 is a Friedman number, since it can be written as 8+((5+4)*3)^4-1, using all its digits and the basic arithmetic operations.

2⁵³¹⁴⁴⁸ is an apocalyptic number.

It is an amenable number.

531448 is a deficient number, since it is larger than the sum of its proper divisors (465032).

531448 is a wasteful number, since it uses less digits than its factorization.

531448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66437 (or 66433 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 531448 is about 729.0048010816. The cubic root of 531448 is about 81.0003556353. Note that the first 3 decimals are identical.

It can be divided in two parts, 531 and 448, that added together give a palindrome (979).

The spelling of 531448 in words is "five hundred thirty-one thousand, four hundred forty-eight".