659442 has 24 divisors (see below), whose sum is σ = 1534896. Its totient is φ = 188328.

The previous prime is 659437. The next prime is 659453. The reversal of 659442 is 244956.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

659442 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 11 ways as a sum of consecutive naturals, for example, 828 + ... + 1415.

It is an arithmetic number, because the mean of its divisors is an integer number (63954).

2⁶⁵⁹⁴⁴² is an apocalyptic number.

659442 is an abundant number, since it is smaller than the sum of its proper divisors (875454).

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

659442 is a wasteful number, since it uses less digits than its factorization.

659442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262 (or 2255 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 659442 is about 812.0603425855. The cubic root of 659442 is about 87.0413332465.

The spelling of 659442 in words is "six hundred fifty-nine thousand, four hundred forty-two".