430681 has 4 divisors (see below), whose sum is σ = 432000. Its totient is φ = 429364.

The previous prime is 430663. The next prime is 430691. The reversal of 430681 is 186034.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 430681 - 2⁵ = 430649 is a prime.

It is a super-2 number, since 2×430681² = 370972247522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (430601) 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, 240 + ... + 958.

It is an arithmetic number, because the mean of its divisors is an integer number (108000).

2⁴³⁰⁶⁸¹ is an apocalyptic number.

It is an amenable number.

430681 is a deficient number, since it is larger than the sum of its proper divisors (1319).

430681 is an equidigital number, since it uses as much as digits as its factorization.

430681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 430681 is about 656.2629046350. The cubic root of 430681 is about 75.5182477128.

It can be divided in two parts, 430 and 681, that added together give a palindrome (1111).

The spelling of 430681 in words is "four hundred thirty thousand, six hundred eighty-one".