660414 has 8 divisors (see below), whose sum is σ = 1320840. Its totient is φ = 220136.

The previous prime is 660409. The next prime is 660449. The reversal of 660414 is 414066.

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

660414 is an admirable number.

It is a super-2 number, since 2×660414² = 872293302792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

660414 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 55029 + ... + 55040.

It is an arithmetic number, because the mean of its divisors is an integer number (165105).

2⁶⁶⁰⁴¹⁴ is an apocalyptic number.

660414 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.

660414 is a wasteful number, since it uses less digits than its factorization.

660414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110074.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 660414 is about 812.6585999053. The cubic root of 660414 is about 87.0840777900.

The spelling of 660414 in words is "six hundred sixty thousand, four hundred fourteen".