672818260 has 12 divisors (see below), whose sum is σ = 1412918388. Its totient is φ = 269127296.

The previous prime is 672818243. The next prime is 672818269. The reversal of 672818260 is 62818276.

It can be written as a sum of positive squares in 2 ways, for example, as 237344836 + 435473424 = 15406^2 + 20868^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672818269) 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 3 ways as a sum of consecutive naturals, for example, 16820437 + ... + 16820476.

It is an arithmetic number, because the mean of its divisors is an integer number (117743199).

Almost surely, 2^672818260 is an apocalyptic number.

It is an amenable number.

672818260 is an abundant number, since it is smaller than the sum of its proper divisors (740100128).

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

672818260 is a wasteful number, since it uses less digits than its factorization.

672818260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33640922 (or 33640920 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 672818260 is about 25938.7405245513. The cubic root of 672818260 is about 876.2591981957.

The spelling of 672818260 in words is "six hundred seventy-two million, eight hundred eighteen thousand, two hundred sixty".