671251248 has 60 divisors (see below), whose sum is σ = 1881171760. Its totient is φ = 223440768.

The previous prime is 671251223. The next prime is 671251271. The reversal of 671251248 is 842152176.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116565 + ... + 122187.

Almost surely, 2^671251248 is an apocalyptic number.

It is an amenable number.

671251248 is an abundant number, since it is smaller than the sum of its proper divisors (1209920512).

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

671251248 is a wasteful number, since it uses less digits than its factorization.

671251248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6466 (or 6457 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 671251248 is about 25908.5169008185. The cubic root of 671251248 is about 875.5783922266.

The spelling of 671251248 in words is "six hundred seventy-one million, two hundred fifty-one thousand, two hundred forty-eight".