673778200 has 48 divisors (see below), whose sum is σ = 1575992880. Its totient is φ = 267884160.

The previous prime is 673778179. The next prime is 673778201. The reversal of 673778200 is 2877376.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673778201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23314 + ... + 43486.

It is an arithmetic number, because the mean of its divisors is an integer number (32833185).

Almost surely, 2^673778200 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 673778200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (787996440).

673778200 is an abundant number, since it is smaller than the sum of its proper divisors (902214680).

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

673778200 is a wasteful number, since it uses less digits than its factorization.

673778200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20356 (or 20347 counting only the distinct ones).

The product of its (nonzero) digits is 98784, while the sum is 40.

The square root of 673778200 is about 25957.2379116115. The cubic root of 673778200 is about 876.6757329337.

The spelling of 673778200 in words is "six hundred seventy-three million, seven hundred seventy-eight thousand, two hundred".