673384840 has 32 divisors (see below), whose sum is σ = 1537735680. Its totient is φ = 265332672.

The previous prime is 673384837. The next prime is 673384879. The reversal of 673384840 is 48483376.

It is a happy number.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122952 + ... + 128311.

It is an arithmetic number, because the mean of its divisors is an integer number (48054240).

Almost surely, 2^673384840 is an apocalyptic number.

It is an amenable number.

673384840 is an abundant number, since it is smaller than the sum of its proper divisors (864350840).

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

673384840 is a wasteful number, since it uses less digits than its factorization.

673384840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251341 (or 251337 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 43.

The square root of 673384840 is about 25949.6597280196. The cubic root of 673384840 is about 876.5050950308.

The spelling of 673384840 in words is "six hundred seventy-three million, three hundred eighty-four thousand, eight hundred forty".