671418402 has 8 divisors (see below), whose sum is σ = 1342836816. Its totient is φ = 223806132.

The previous prime is 671418401. The next prime is 671418413. The reversal of 671418402 is 204814176.

It is a sphenic number, since it is the product of 3 distinct primes.

671418402 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (671418401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55951528 + ... + 55951539.

It is an arithmetic number, because the mean of its divisors is an integer number (167854602).

Almost surely, 2^671418402 is an apocalyptic number.

671418402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

671418402 is a wasteful number, since it uses less digits than its factorization.

671418402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111903072.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 671418402 is about 25911.7425504345. The cubic root of 671418402 is about 875.6510646098.

The spelling of 671418402 in words is "six hundred seventy-one million, four hundred eighteen thousand, four hundred two".