671983360 has 144 divisors (see below), whose sum is σ = 1707884640. Its totient is φ = 252887040.

The previous prime is 671983357. The next prime is 671983379. The reversal of 671983360 is 63389176.

It is a super-2 number, since 2×671983360² = 903123272233779200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1595950 + ... + 1596370.

It is an arithmetic number, because the mean of its divisors is an integer number (11860310).

Almost surely, 2^671983360 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 671983360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (853942320).

671983360 is an abundant number, since it is smaller than the sum of its proper divisors (1035901280).

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

671983360 is a wasteful number, since it uses less digits than its factorization.

671983360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 671983360 is about 25922.6418406767. The cubic root of 671983360 is about 875.8965982355.

The spelling of 671983360 in words is "six hundred seventy-one million, nine hundred eighty-three thousand, three hundred sixty".