673580640 has 96 divisors (see below), whose sum is σ = 2133776736. Its totient is φ = 178606080.

The previous prime is 673580603. The next prime is 673580653. The reversal of 673580640 is 46085376.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83004 + ... + 90756.

It is an arithmetic number, because the mean of its divisors is an integer number (22226841).

Almost surely, 2^673580640 is an apocalyptic number.

673580640 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 673580640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1066888368).

673580640 is an abundant number, since it is smaller than the sum of its proper divisors (1460196096).

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

673580640 is a wasteful number, since it uses less digits than its factorization.

673580640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7952 (or 7944 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 673580640 is about 25953.4321429748. The cubic root of 673580640 is about 876.5900405460.

The spelling of 673580640 in words is "six hundred seventy-three million, five hundred eighty thousand, six hundred forty".