660460 has 12 divisors (see below), whose sum is σ = 1387008. Its totient is φ = 264176.

The previous prime is 660449. The next prime is 660493. The reversal of 660460 is 64066.

660460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16492 + ... + 16531.

It is an arithmetic number, because the mean of its divisors is an integer number (115584).

2⁶⁶⁰⁴⁶⁰ is an apocalyptic number.

It is an amenable number.

660460 is an abundant number, since it is smaller than the sum of its proper divisors (726548).

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

660460 is a wasteful number, since it uses less digits than its factorization.

660460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33032 (or 33030 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 660460 is about 812.6869015802. The cubic root of 660460 is about 87.0860996402.

The spelling of 660460 in words is "six hundred sixty thousand, four hundred sixty".