430221401 has 4 divisors (see below), whose sum is σ = 430302372. Its totient is φ = 430140432.

The previous prime is 430221383. The next prime is 430221403. The reversal of 430221401 is 104122034.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 277056025 + 153165376 = 16645^2 + 12376^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-430221401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 430221401.

It is not an unprimeable number, because it can be changed into a prime (430221403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31910 + ... + 43343.

It is an arithmetic number, because the mean of its divisors is an integer number (107575593).

Almost surely, 2^430221401 is an apocalyptic number.

It is an amenable number.

430221401 is a deficient number, since it is larger than the sum of its proper divisors (80971).

430221401 is an equidigital number, since it uses as much as digits as its factorization.

430221401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80970.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 430221401 is about 20741.7791184845. The cubic root of 430221401 is about 754.9137518248.

Adding to 430221401 its reverse (104122034), we get a palindrome (534343435).

The spelling of 430221401 in words is "four hundred thirty million, two hundred twenty-one thousand, four hundred one".