430442221 has 8 divisors (see below), whose sum is σ = 469956384. Its totient is φ = 390991920.

The previous prime is 430442209. The next prime is 430442249. The reversal of 430442221 is 122244034.

It is a happy number.

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

It is not a de Polignac number, because 430442221 - 2¹¹ = 430440173 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 430442192 and 430442201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (430442251) 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, 1275 + ... + 29368.

It is an arithmetic number, because the mean of its divisors is an integer number (58744548).

Almost surely, 2^430442221 is an apocalyptic number.

It is an amenable number.

430442221 is a deficient number, since it is larger than the sum of its proper divisors (39514163).

430442221 is a wasteful number, since it uses less digits than its factorization.

430442221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31931.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 430442221 is about 20747.1015084035. The cubic root of 430442221 is about 755.0428880802.

Adding to 430442221 its reverse (122244034), we get a palindrome (552686255).

The spelling of 430442221 in words is "four hundred thirty million, four hundred forty-two thousand, two hundred twenty-one".