671444562 has 32 divisors (see below), whose sum is σ = 1388911104. Its totient is φ = 216172800.

The previous prime is 671444509. The next prime is 671444623. The reversal of 671444562 is 265444176.

It is a self number, because there is not a number n which added to its sum of digits gives 671444562.

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, 100362 + ... + 106842.

It is an arithmetic number, because the mean of its divisors is an integer number (43403472).

Almost surely, 2^671444562 is an apocalyptic number.

671444562 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

671444562 is an abundant number, since it is smaller than the sum of its proper divisors (717466542).

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

671444562 is a wasteful number, since it uses less digits than its factorization.

671444562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7074.

The product of its digits is 161280, while the sum is 39.

The square root of 671444562 is about 25912.2473359607. The cubic root of 671444562 is about 875.6624369196.

The spelling of 671444562 in words is "six hundred seventy-one million, four hundred forty-four thousand, five hundred sixty-two".