461660 has 24 divisors (see below), whose sum is σ = 994896. Its totient is φ = 179840.

The previous prime is 461653. The next prime is 461677. The reversal of 461660 is 66164.

It is a congruent number.

It is an unprimeable number.

461660 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539 + ... + 1101.

It is an arithmetic number, because the mean of its divisors is an integer number (41454).

2⁴⁶¹⁶⁶⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 461660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (497448).

461660 is an abundant number, since it is smaller than the sum of its proper divisors (533236).

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

461660 is a wasteful number, since it uses less digits than its factorization.

461660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613 (or 611 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 461660 is about 679.4556644844. The cubic root of 461660 is about 77.2871718829.

The spelling of 461660 in words is "four hundred sixty-one thousand, six hundred sixty".