430002421 has 2 divisors, whose sum is σ = 430002422. Its totient is φ = 430002420.

The previous prime is 430002413. The next prime is 430002427. The reversal of 430002421 is 124200034.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 364619025 + 65383396 = 19095^2 + 8086^2 .

It is a cyclic number.

It is not a de Polignac number, because 430002421 - 2³ = 430002413 is a prime.

It is a super-2 number, since 2×430002421² = 369804164131722482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 430002395 and 430002404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (430002427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215001210 + 215001211.

It is an arithmetic number, because the mean of its divisors is an integer number (215001211).

Almost surely, 2^430002421 is an apocalyptic number.

It is an amenable number.

430002421 is a deficient number, since it is larger than the sum of its proper divisors (1).

430002421 is an equidigital number, since it uses as much as digits as its factorization.

430002421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 430002421 is about 20736.4997287392. The cubic root of 430002421 is about 754.7856479630.

Adding to 430002421 its reverse (124200034), we get a palindrome (554202455).

The spelling of 430002421 in words is "four hundred thirty million, two thousand, four hundred twenty-one".