430644 has 24 divisors (see below), whose sum is σ = 1064448. Its totient is φ = 135040.

The previous prime is 430603. The next prime is 430649. The reversal of 430644 is 446034.

It is a self number, because there is not a number n which added to its sum of digits gives 430644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (430649) by changing a digit.

430644 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, 852 + ... + 1259.

It is an arithmetic number, because the mean of its divisors is an integer number (44352).

2⁴³⁰⁶⁴⁴ is an apocalyptic number.

It is an amenable number.

430644 is an abundant number, since it is smaller than the sum of its proper divisors (633804).

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

430644 is a wasteful number, since it uses less digits than its factorization.

430644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135 (or 2133 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 430644 is about 656.2347141077. The cubic root of 430644 is about 75.5160850485.

Adding to 430644 its reverse (446034), we get a palindrome (876678).

The spelling of 430644 in words is "four hundred thirty thousand, six hundred forty-four".