671000940 has 72 divisors (see below), whose sum is σ = 2037955920. Its totient is φ = 178706304.

The previous prime is 671000933. The next prime is 671000951. The reversal of 671000940 is 49000176.

It is a super-2 number, since 2×671000940² = 900484522961767200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 177591 + ... + 181329.

Almost surely, 2^671000940 is an apocalyptic number.

671000940 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

671000940 is an abundant number, since it is smaller than the sum of its proper divisors (1366954980).

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

671000940 is a wasteful number, since it uses less digits than its factorization.

671000940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4751 (or 4746 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 671000940 is about 25903.6858381196. The cubic root of 671000940 is about 875.4695449932.

The spelling of 671000940 in words is "six hundred seventy-one million, nine hundred forty", and thus it is an aban number.