671948238 has 32 divisors (see below), whose sum is σ = 1449326592. Its totient is φ = 206460000.

The previous prime is 671948203. The next prime is 671948269. The reversal of 671948238 is 832849176.

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, 52843 + ... + 64313.

It is an arithmetic number, because the mean of its divisors is an integer number (45291456).

Almost surely, 2^671948238 is an apocalyptic number.

671948238 is an abundant number, since it is smaller than the sum of its proper divisors (777378354).

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

671948238 is a wasteful number, since it uses less digits than its factorization.

671948238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12240.

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

The square root of 671948238 is about 25921.9643931551. The cubic root of 671948238 is about 875.8813380480.

The spelling of 671948238 in words is "six hundred seventy-one million, nine hundred forty-eight thousand, two hundred thirty-eight".