673040 has 40 divisors (see below), whose sum is σ = 1607040. Its totient is φ = 262016.

The previous prime is 673039. The next prime is 673063. The reversal of 673040 is 40376.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 3671 + ... + 3849.

It is an arithmetic number, because the mean of its divisors is an integer number (40176).

2⁶⁷³⁰⁴⁰ 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 673040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (803520).

673040 is an abundant number, since it is smaller than the sum of its proper divisors (934000).

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

673040 is a wasteful number, since it uses less digits than its factorization.

673040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 673040 is about 820.3901510867. The cubic root of 673040 is about 87.6355450227.

The spelling of 673040 in words is "six hundred seventy-three thousand, forty".