6673503440 has 20 divisors (see below), whose sum is σ = 15515895684. Its totient is φ = 2669401344.

The previous prime is 6673503439. The next prime is 6673503449. The reversal of 6673503440 is 443053766.

It can be written as a sum of positive squares in 2 ways, for example, as 2278343824 + 4395159616 = 47732^2 + 66296^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 6673503394 and 6673503403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6673503449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41709317 + ... + 41709476.

Almost surely, 2^6673503440 is an apocalyptic number.

It is an amenable number.

6673503440 is an abundant number, since it is smaller than the sum of its proper divisors (8842392244).

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

6673503440 is a wasteful number, since it uses less digits than its factorization.

6673503440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83418806 (or 83418800 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 38.

The square root of 6673503440 is about 81691.5138799619. The cubic root of 6673503440 is about 1882.7152029630.

The spelling of 6673503440 in words is "six billion, six hundred seventy-three million, five hundred three thousand, four hundred forty".