673443520 has 56 divisors (see below), whose sum is σ = 1626278688. Its totient is φ = 265574400.

The previous prime is 673443503. The next prime is 673443527. The reversal of 673443520 is 25344376.

It is not an unprimeable number, because it can be changed into a prime (673443527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7900 + ... + 37540.

Almost surely, 2^673443520 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 673443520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (813139344).

673443520 is an abundant number, since it is smaller than the sum of its proper divisors (952835168).

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

673443520 is a wasteful number, since it uses less digits than its factorization.

673443520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29729 (or 29719 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 34.

The square root of 673443520 is about 25950.7903540528. The cubic root of 673443520 is about 876.5305543829.

Adding to 673443520 its reverse (25344376), we get a palindrome (698787896).

The spelling of 673443520 in words is "six hundred seventy-three million, four hundred forty-three thousand, five hundred twenty".