531668448 has 192 divisors, whose sum is σ = 1606832640. Its totient is φ = 173093760.

The previous prime is 531668441. The next prime is 531668477. The reversal of 531668448 is 844866135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531668441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4968811 + ... + 4968917.

It is an arithmetic number, because the mean of its divisors is an integer number (8368920).

Almost surely, 2^531668448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531668448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (803416320).

531668448 is an abundant number, since it is smaller than the sum of its proper divisors (1075164192).

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

531668448 is an equidigital number, since it uses as much as digits as its factorization.

531668448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 183 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 531668448 is about 23057.9367680632. The cubic root of 531668448 is about 810.1155390742.

The spelling of 531668448 in words is "five hundred thirty-one million, six hundred sixty-eight thousand, four hundred forty-eight".