673444000 has 96 divisors (see below), whose sum is σ = 1708342272. Its totient is φ = 260640000.

The previous prime is 673443959. The next prime is 673444021. The reversal of 673444000 is 444376.

It is a super-2 number, since 2×673444000² = 907053642272000000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 673444000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121285 + ... + 126715.

It is an arithmetic number, because the mean of its divisors is an integer number (17795232).

Almost surely, 2^673444000 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 673444000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (854171136).

673444000 is an abundant number, since it is smaller than the sum of its proper divisors (1034898272).

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

673444000 is a wasteful number, since it uses less digits than its factorization.

673444000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5487 (or 5469 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 673444000 is about 25950.7996023244. The cubic root of 673444000 is about 876.5307626332.

Adding to 673444000 its reverse (444376), we get a palindrome (673888376).

The spelling of 673444000 in words is "six hundred seventy-three million, four hundred forty-four thousand".