671199360 has 128 divisors (see below), whose sum is σ = 2304106560. Its totient is φ = 165212160.

The previous prime is 671199359. The next prime is 671199371. The reversal of 671199360 is 63991176.

It is a tau number, because it is divible by the number of its divisors (128).

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 15 ways as a sum of consecutive naturals, for example, 11515 + ... + 38405.

Almost surely, 2^671199360 is an apocalyptic number.

671199360 is a gapful number since it is divisible by the number (60) 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 671199360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1152053280).

671199360 is an abundant number, since it is smaller than the sum of its proper divisors (1632907200).

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

671199360 is a wasteful number, since it uses less digits than its factorization.

671199360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26926 (or 26914 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 671199360 is about 25907.5155119128. The cubic root of 671199360 is about 875.5558307875. Note that the first 3 decimals are identical.

The spelling of 671199360 in words is "six hundred seventy-one million, one hundred ninety-nine thousand, three hundred sixty".