673318800 has 540 divisors, whose sum is σ = 2973733776. Its totient is φ = 139507200.

The previous prime is 673318787. The next prime is 673318829. The reversal of 673318800 is 8813376.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 1940227 + ... + 1940573.

Almost surely, 2^673318800 is an apocalyptic number.

673318800 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 673318800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1486866888).

673318800 is an abundant number, since it is smaller than the sum of its proper divisors (2300414976).

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

673318800 is a wasteful number, since it uses less digits than its factorization.

673318800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396 (or 375 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 673318800 is about 25948.3872331211. The cubic root of 673318800 is about 876.4764406441.

The spelling of 673318800 in words is "six hundred seventy-three million, three hundred eighteen thousand, eight hundred".