321430 has 8 divisors (see below), whose sum is σ = 578592. Its totient is φ = 128568.

The previous prime is 321427. The next prime is 321443. The reversal of 321430 is 34123.

It is a sphenic number, since it is the product of 3 distinct primes.

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

It is a self number, because there is not a number n which added to its sum of digits gives 321430.

It is a congruent number.

It is an unprimeable 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 3 ways as a sum of consecutive naturals, for example, 16062 + ... + 16081.

It is an arithmetic number, because the mean of its divisors is an integer number (72324).

2³²¹⁴³⁰ is an apocalyptic number.

321430 is a deficient number, since it is larger than the sum of its proper divisors (257162).

321430 is a wasteful number, since it uses less digits than its factorization.

321430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32150.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 321430 is about 566.9479693940. The cubic root of 321430 is about 68.5007725418.

Adding to 321430 its reverse (34123), we get a palindrome (355553).

The spelling of 321430 in words is "three hundred twenty-one thousand, four hundred thirty".