673055540 has 24 divisors (see below), whose sum is σ = 1413963432. Its totient is φ = 269118080.

The previous prime is 673055531. The next prime is 673055543. The reversal of 673055540 is 45550376.

It can be written as a sum of positive squares in 4 ways, for example, as 38217124 + 634838416 = 6182^2 + 25196^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 673055540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673055543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66410 + ... + 75870.

It is an arithmetic number, because the mean of its divisors is an integer number (58915143).

Almost surely, 2^673055540 is an apocalyptic number.

It is an amenable number.

673055540 is an abundant number, since it is smaller than the sum of its proper divisors (740907892).

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

673055540 is a wasteful number, since it uses less digits than its factorization.

673055540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13027 (or 13025 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 35.

The square root of 673055540 is about 25943.3139748953. The cubic root of 673055540 is about 876.3621949769.

The spelling of 673055540 in words is "six hundred seventy-three million, fifty-five thousand, five hundred forty".