673451680 has 48 divisors (see below), whose sum is σ = 1735673184. Its totient is φ = 244890880.

The previous prime is 673451677. The next prime is 673451683. The reversal of 673451680 is 86154376.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (673451677) and next prime (673451683).

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

It is not an unprimeable number, because it can be changed into a prime (673451683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189562 + ... + 193081.

It is an arithmetic number, because the mean of its divisors is an integer number (36159858).

Almost surely, 2^673451680 is an apocalyptic number.

It is an amenable number.

673451680 is an abundant number, since it is smaller than the sum of its proper divisors (1062221504).

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

673451680 is a wasteful number, since it uses less digits than its factorization.

673451680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382669 (or 382661 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 673451680 is about 25950.9475742216. The cubic root of 673451680 is about 876.5340946255.

The spelling of 673451680 in words is "six hundred seventy-three million, four hundred fifty-one thousand, six hundred eighty".