668274 has 16 divisors (see below), whose sum is σ = 1348608. Its totient is φ = 220752.

The previous prime is 668273. The next prime is 668303. The reversal of 668274 is 472866.

It is a super-3 number, since 3×668274³ = 895333735802624472, which contains 333 as substring.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (668273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324 + ... + 1200.

It is an arithmetic number, because the mean of its divisors is an integer number (84288).

2⁶⁶⁸²⁷⁴ is an apocalyptic number.

668274 is an abundant number, since it is smaller than the sum of its proper divisors (680334).

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

668274 is a wasteful number, since it uses less digits than its factorization.

668274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009.

The product of its digits is 16128, while the sum is 33.

The square root of 668274 is about 817.4802749914. The cubic root of 668274 is about 87.4281968763.

The spelling of 668274 in words is "six hundred sixty-eight thousand, two hundred seventy-four".