671043472 has 40 divisors (see below), whose sum is σ = 1426605120. Its totient is φ = 303242880.

The previous prime is 671043467. The next prime is 671043479. The reversal of 671043472 is 274340176.

It is not an unprimeable number, because it can be changed into a prime (671043479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19429 + ... + 41467.

It is an arithmetic number, because the mean of its divisors is an integer number (35665128).

Almost surely, 2^671043472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671043472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (713302560).

671043472 is an abundant number, since it is smaller than the sum of its proper divisors (755561648).

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

671043472 is a wasteful number, since it uses less digits than its factorization.

671043472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22231 (or 22225 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 671043472 is about 25904.5067893600. The cubic root of 671043472 is about 875.4880420780.

The spelling of 671043472 in words is "six hundred seventy-one million, forty-three thousand, four hundred seventy-two".