673640322 has 16 divisors (see below), whose sum is σ = 1378613280. Its totient is φ = 219324672.

The previous prime is 673640299. The next prime is 673640327. The reversal of 673640322 is 223046376.

It is not an unprimeable number, because it can be changed into a prime (673640327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1305247 + ... + 1305762.

It is an arithmetic number, because the mean of its divisors is an integer number (86163330).

Almost surely, 2^673640322 is an apocalyptic number.

673640322 is an abundant number, since it is smaller than the sum of its proper divisors (704972958).

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

673640322 is a wasteful number, since it uses less digits than its factorization.

673640322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2611057.

The product of its (nonzero) digits is 36288, while the sum is 33.

The square root of 673640322 is about 25954.5819076324. The cubic root of 673640322 is about 876.6159296025.

Adding to 673640322 its reverse (223046376), we get a palindrome (896686698).

The spelling of 673640322 in words is "six hundred seventy-three million, six hundred forty thousand, three hundred twenty-two".