671466740 has 24 divisors (see below), whose sum is σ = 1611520512. Its totient is φ = 230217120.

The previous prime is 671466737. The next prime is 671466751. The reversal of 671466740 is 47664176.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2397956 + ... + 2398235.

It is an arithmetic number, because the mean of its divisors is an integer number (67146688).

Almost surely, 2^671466740 is an apocalyptic number.

It is an amenable number.

671466740 is an abundant number, since it is smaller than the sum of its proper divisors (940053772).

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

671466740 is a wasteful number, since it uses less digits than its factorization.

671466740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4796207 (or 4796205 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 671466740 is about 25912.6752767830. The cubic root of 671466740 is about 875.6720779378.

The spelling of 671466740 in words is "six hundred seventy-one million, four hundred sixty-six thousand, seven hundred forty".