671471340 has 24 divisors (see below), whose sum is σ = 1880119920. Its totient is φ = 179059008.

The previous prime is 671471303. The next prime is 671471341. The reversal of 671471340 is 43174176.

It is not an unprimeable number, because it can be changed into a prime (671471341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5595535 + ... + 5595654.

It is an arithmetic number, because the mean of its divisors is an integer number (78338330).

Almost surely, 2^671471340 is an apocalyptic number.

671471340 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

671471340 is an abundant number, since it is smaller than the sum of its proper divisors (1208648580).

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

671471340 is a wasteful number, since it uses less digits than its factorization.

671471340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11191201 (or 11191199 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 671471340 is about 25912.7640362814. The cubic root of 671471340 is about 875.6740775814.

The spelling of 671471340 in words is "six hundred seventy-one million, four hundred seventy-one thousand, three hundred forty".