671445474 has 32 divisors (see below), whose sum is σ = 1535778816. Its totient is φ = 191710800.

The previous prime is 671445469. The next prime is 671445487. The reversal of 671445474 is 474544176.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 68799 + ... + 77949.

It is an arithmetic number, because the mean of its divisors is an integer number (47993088).

Almost surely, 2^671445474 is an apocalyptic number.

671445474 is an abundant number, since it is smaller than the sum of its proper divisors (864333342).

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

671445474 is a wasteful number, since it uses less digits than its factorization.

671445474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10910.

The product of its digits is 376320, while the sum is 42.

The square root of 671445474 is about 25912.2649338108. The cubic root of 671445474 is about 875.6628333802.

The spelling of 671445474 in words is "six hundred seventy-one million, four hundred forty-five thousand, four hundred seventy-four".