671842938 has 24 divisors (see below), whose sum is σ = 1454999328. Its totient is φ = 206720592.

The previous prime is 671842883. The next prime is 671842961. The reversal of 671842938 is 839248176.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 330270 + ... + 332297.

It is an arithmetic number, because the mean of its divisors is an integer number (60624972).

Almost surely, 2^671842938 is an apocalyptic number.

671842938 is an abundant number, since it is smaller than the sum of its proper divisors (783156390).

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

671842938 is a wasteful number, since it uses less digits than its factorization.

671842938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662598 (or 662585 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The square root of 671842938 is about 25919.9332175066. The cubic root of 671842938 is about 875.8355829745.

The spelling of 671842938 in words is "six hundred seventy-one million, eight hundred forty-two thousand, nine hundred thirty-eight".