673904448 has 280 divisors, whose sum is σ = 2335784000. Its totient is φ = 192036096.

The previous prime is 673904423. The next prime is 673904477. The reversal of 673904448 is 844409376.

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 1777923 + ... + 1778301.

Almost surely, 2^673904448 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 673904448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1167892000).

673904448 is an abundant number, since it is smaller than the sum of its proper divisors (1661879552).

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

673904448 is an equidigital number, since it uses as much as digits as its factorization.

673904448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 673904448 is about 25959.6696435066. The cubic root of 673904448 is about 876.7304847031.

The spelling of 673904448 in words is "six hundred seventy-three million, nine hundred four thousand, four hundred forty-eight".