671743344 has 40 divisors (see below), whose sum is σ = 1777667472. Its totient is φ = 218452480.

The previous prime is 671743343. The next prime is 671743351. The reversal of 671743344 is 443347176.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671743343) 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, 168699 + ... + 172634.

Almost surely, 2^671743344 is an apocalyptic number.

It is an amenable number.

671743344 is an abundant number, since it is smaller than the sum of its proper divisors (1105924128).

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

671743344 is a wasteful number, since it uses less digits than its factorization.

671743344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341385 (or 341379 counting only the distinct ones).

The product of its digits is 169344, while the sum is 39.

The square root of 671743344 is about 25918.0119607967. The cubic root of 671743344 is about 875.7923028789.

The spelling of 671743344 in words is "six hundred seventy-one million, seven hundred forty-three thousand, three hundred forty-four".