673343740 has 24 divisors (see below), whose sum is σ = 1429913520. Its totient is φ = 266310528.

The previous prime is 673343731. The next prime is 673343753. The reversal of 673343740 is 47343376.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 673343740.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187362 + ... + 190921.

It is an arithmetic number, because the mean of its divisors is an integer number (59579730).

Almost surely, 2^673343740 is an apocalyptic number.

It is an amenable number.

673343740 is an abundant number, since it is smaller than the sum of its proper divisors (756569780).

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

673343740 is a wasteful number, since it uses less digits than its factorization.

673343740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378381 (or 378379 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 37.

The square root of 673343740 is about 25948.8677980370. The cubic root of 673343740 is about 876.4872621908.

The spelling of 673343740 in words is "six hundred seventy-three million, three hundred forty-three thousand, seven hundred forty".