671023144 has 32 divisors (see below), whose sum is σ = 1374135840. Its totient is φ = 304657600.

The previous prime is 671023103. The next prime is 671023151. The reversal of 671023144 is 441320176.

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, 81522 + ... + 89374.

It is an arithmetic number, because the mean of its divisors is an integer number (42941745).

Almost surely, 2^671023144 is an apocalyptic number.

It is an amenable number.

671023144 is an abundant number, since it is smaller than the sum of its proper divisors (703112696).

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

671023144 is a wasteful number, since it uses less digits than its factorization.

671023144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8841 (or 8837 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 671023144 is about 25904.1144222303. The cubic root of 671023144 is about 875.4792015675.

The spelling of 671023144 in words is "six hundred seventy-one million, twenty-three thousand, one hundred forty-four".