659420 has 12 divisors (see below), whose sum is σ = 1384824. Its totient is φ = 263760.

The previous prime is 659419. The next prime is 659423. The reversal of 659420 is 24956.

It is a self number, because there is not a number n which added to its sum of digits gives 659420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (659423) by changing a digit.

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, 16466 + ... + 16505.

It is an arithmetic number, because the mean of its divisors is an integer number (115402).

2⁶⁵⁹⁴²⁰ is an apocalyptic number.

It is an amenable number.

659420 is an abundant number, since it is smaller than the sum of its proper divisors (725404).

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

659420 is a wasteful number, since it uses less digits than its factorization.

659420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32980 (or 32978 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 659420 is about 812.0467966811. The cubic root of 659420 is about 87.0403652914.

The spelling of 659420 in words is "six hundred fifty-nine thousand, four hundred twenty".