430561 has 4 divisors (see below), whose sum is σ = 431892. Its totient is φ = 429232.

The previous prime is 430553. The next prime is 430571. The reversal of 430561 is 165034.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 32400 + 398161 = 180^2 + 631^2 .

It is a cyclic number.

It is not a de Polignac number, because 430561 - 2³ = 430553 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (430511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171 + ... + 943.

It is an arithmetic number, because the mean of its divisors is an integer number (107973).

2⁴³⁰⁵⁶¹ is an apocalyptic number.

It is an amenable number.

430561 is a deficient number, since it is larger than the sum of its proper divisors (1331).

430561 is an equidigital number, since it uses as much as digits as its factorization.

430561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 430561 is about 656.1714714920. The cubic root of 430561 is about 75.5112332159.

Adding to 430561 its reverse (165034), we get a palindrome (595595).

The spelling of 430561 in words is "four hundred thirty thousand, five hundred sixty-one".