671334464 has 56 divisors (see below), whose sum is σ = 1386523008. Its totient is φ = 322250240.

The previous prime is 671334431. The next prime is 671334487. The reversal of 671334464 is 464433176.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157319 + ... + 161529.

Almost surely, 2^671334464 is an apocalyptic number.

671334464 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671334464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (693261504).

671334464 is an abundant number, since it is smaller than the sum of its proper divisors (715188544).

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

671334464 is a wasteful number, since it uses less digits than its factorization.

671334464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4323 (or 4313 counting only the distinct ones).

The product of its digits is 145152, while the sum is 38.

The square root of 671334464 is about 25910.1228094349. The cubic root of 671334464 is about 875.6145729766.

The spelling of 671334464 in words is "six hundred seventy-one million, three hundred thirty-four thousand, four hundred sixty-four".