430620221 has 8 divisors (see below), whose sum is σ = 432377088. Its totient is φ = 428868000.

The previous prime is 430620131. The next prime is 430620227. The reversal of 430620221 is 122026034.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-430620221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 430620193 and 430620202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (430620227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 434036 + ... + 435026.

It is an arithmetic number, because the mean of its divisors is an integer number (54047136).

Almost surely, 2^430620221 is an apocalyptic number.

It is an amenable number.

430620221 is a deficient number, since it is larger than the sum of its proper divisors (1756867).

430620221 is an equidigital number, since it uses as much as digits as its factorization.

430620221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2323.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 430620221 is about 20751.3908208582. The cubic root of 430620221 is about 755.1469509145.

Adding to 430620221 its reverse (122026034), we get a palindrome (552646255).

The spelling of 430620221 in words is "four hundred thirty million, six hundred twenty thousand, two hundred twenty-one".