673712340 has 96 divisors (see below), whose sum is σ = 2230260480. Its totient is φ = 148678656.

The previous prime is 673712231. The next prime is 673712341. The reversal of 673712340 is 43217376.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673712341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15477 + ... + 39836.

It is an arithmetic number, because the mean of its divisors is an integer number (23231880).

Almost surely, 2^673712340 is an apocalyptic number.

673712340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

673712340 is an abundant number, since it is smaller than the sum of its proper divisors (1556548140).

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

673712340 is a wasteful number, since it uses less digits than its factorization.

673712340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55361 (or 55359 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 673712340 is about 25955.9692556452. The cubic root of 673712340 is about 876.6471677743.

The spelling of 673712340 in words is "six hundred seventy-three million, seven hundred twelve thousand, three hundred forty".