673641460 has 12 divisors (see below), whose sum is σ = 1414647108. Its totient is φ = 269456576.

The previous prime is 673641443. The next prime is 673641469. The reversal of 673641460 is 64146376.

It can be written as a sum of positive squares in 2 ways, for example, as 130005604 + 543635856 = 11402^2 + 23316^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673641469) 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, 16841017 + ... + 16841056.

It is an arithmetic number, because the mean of its divisors is an integer number (117887259).

Almost surely, 2^673641460 is an apocalyptic number.

It is an amenable number.

673641460 is an abundant number, since it is smaller than the sum of its proper divisors (741005648).

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

673641460 is a wasteful number, since it uses less digits than its factorization.

673641460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33682082 (or 33682080 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 673641460 is about 25954.6038305346. The cubic root of 673641460 is about 876.6164232330.

The spelling of 673641460 in words is "six hundred seventy-three million, six hundred forty-one thousand, four hundred sixty".