671450044 has 24 divisors (see below), whose sum is σ = 1240198400. Its totient is φ = 317202480.

The previous prime is 671450041. The next prime is 671450077. The reversal of 671450044 is 440054176.

It is a junction number, because it is equal to n+sod(n) for n = 671449988 and 671450015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671450041) 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, 17149 + ... + 40459.

Almost surely, 2^671450044 is an apocalyptic number.

It is an amenable number.

671450044 is a deficient number, since it is larger than the sum of its proper divisors (568748356).

671450044 is a wasteful number, since it uses less digits than its factorization.

671450044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23713 (or 23711 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 671450044 is about 25912.3531158403. The cubic root of 671450044 is about 875.6648200245.

The spelling of 671450044 in words is "six hundred seventy-one million, four hundred fifty thousand, forty-four".