670404168 has 64 divisors (see below), whose sum is σ = 2128272000. Its totient is φ = 191543616.

The previous prime is 670404149. The next prime is 670404169. The reversal of 670404168 is 861404076.

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

It is not an unprimeable number, because it can be changed into a prime (670404169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220183 + ... + 223206.

It is an arithmetic number, because the mean of its divisors is an integer number (33254250).

Almost surely, 2^670404168 is an apocalyptic number.

It is an amenable number.

670404168 is an abundant number, since it is smaller than the sum of its proper divisors (1457867832).

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

670404168 is a wasteful number, since it uses less digits than its factorization.

670404168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443411 (or 443401 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 670404168 is about 25892.1642200879. The cubic root of 670404168 is about 875.2099275355.

The spelling of 670404168 in words is "six hundred seventy million, four hundred four thousand, one hundred sixty-eight".