430042221 has 12 divisors (see below), whose sum is σ = 709911072. Its totient is φ = 245738376.

The previous prime is 430042187. The next prime is 430042273. The reversal of 430042221 is 122240034.

It is not a de Polignac number, because 430042221 - 2¹³ = 430034029 is a prime.

It is a super-2 number, since 2×430042221² = 369872623685225682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 430042194 and 430042203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (430042121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3412971 + ... + 3413096.

It is an arithmetic number, because the mean of its divisors is an integer number (59159256).

Almost surely, 2^430042221 is an apocalyptic number.

It is an amenable number.

430042221 is a deficient number, since it is larger than the sum of its proper divisors (279868851).

430042221 is a wasteful number, since it uses less digits than its factorization.

430042221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6826080 (or 6826077 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 430042221 is about 20737.4593670488. The cubic root of 430042221 is about 754.8089342986.

Adding to 430042221 its reverse (122240034), we get a palindrome (552282255).

The spelling of 430042221 in words is "four hundred thirty million, forty-two thousand, two hundred twenty-one".