673488840 has 32 divisors (see below), whose sum is σ = 2020466880. Its totient is φ = 179596992.

The previous prime is 673488821. The next prime is 673488853. The reversal of 673488840 is 48884376.

It is a self number, because there is not a number n which added to its sum of digits gives 673488840.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2806084 + ... + 2806323.

It is an arithmetic number, because the mean of its divisors is an integer number (63139590).

Almost surely, 2^673488840 is an apocalyptic number.

673488840 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

673488840 is an abundant number, since it is smaller than the sum of its proper divisors (1346978040).

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

673488840 is a wasteful number, since it uses less digits than its factorization.

673488840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5612421 (or 5612417 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 48.

The square root of 673488840 is about 25951.6635304945. The cubic root of 673488840 is about 876.5502162513.

The spelling of 673488840 in words is "six hundred seventy-three million, four hundred eighty-eight thousand, eight hundred forty".