671351424 has 64 divisors (see below), whose sum is σ = 1816979040. Its totient is φ = 219554816.

The previous prime is 671351411. The next prime is 671351449. The reversal of 671351424 is 424153176.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3859 + ... + 36845.

Almost surely, 2^671351424 is an apocalyptic number.

671351424 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 671351424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (908489520).

671351424 is an abundant number, since it is smaller than the sum of its proper divisors (1145627616).

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

671351424 is a wasteful number, since it uses less digits than its factorization.

671351424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33057 (or 33045 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 671351424 is about 25910.4500925785. The cubic root of 671351424 is about 875.6219464984.

The spelling of 671351424 in words is "six hundred seventy-one million, three hundred fifty-one thousand, four hundred twenty-four".