6640174 has 8 divisors (see below), whose sum is σ = 9971208. Its totient is φ = 3316440.

The previous prime is 6640163. The next prime is 6640181. The reversal of 6640174 is 4710466.

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

It is a super-3 number, since 3×6640174³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2529 + ... + 4435.

It is an arithmetic number, because the mean of its divisors is an integer number (1246401).

Almost surely, 2^6640174 is an apocalyptic number.

6640174 is a deficient number, since it is larger than the sum of its proper divisors (3331034).

6640174 is a wasteful number, since it uses less digits than its factorization.

6640174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3650.

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

The square root of 6640174 is about 2576.8535076717. The cubic root of 6640174 is about 187.9575692684.

The spelling of 6640174 in words is "six million, six hundred forty thousand, one hundred seventy-four".