659430 has 48 divisors (see below), whose sum is σ = 1819584. Its totient is φ = 165120.

The previous prime is 659423. The next prime is 659437. The reversal of 659430 is 34956.

659430 = 63² + 64² + ... + 130².

It is a happy number.

659430 is a `hidden beast` number, since 659 + 4 + 3 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (659423) and next prime (659437).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 659394 and 659403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (659437) 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 23 ways as a sum of consecutive naturals, for example, 1315 + ... + 1745.

It is an arithmetic number, because the mean of its divisors is an integer number (37908).

2⁶⁵⁹⁴³⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 659430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (909792).

659430 is an abundant number, since it is smaller than the sum of its proper divisors (1160154).

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

659430 is a wasteful number, since it uses less digits than its factorization.

659430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 659430 is about 812.0529539384. The cubic root of 659430 is about 87.0408052736.

It can be divided in two parts, 659 and 430, that added together give a square (1089 = 33²).

The spelling of 659430 in words is "six hundred fifty-nine thousand, four hundred thirty".