421434333 has 10 divisors (see below), whose sum is σ = 629550174. Its totient is φ = 280956168.

The previous prime is 421434319. The next prime is 421434341. The reversal of 421434333 is 333434124.

It can be written as a sum of positive squares in only one way, i.e., 412983684 + 8450649 = 20322^2 + 2907^2 .

It is not a de Polignac number, because 421434333 - 2¹⁶ = 421368797 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 421434297 and 421434306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421433333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2601366 + ... + 2601527.

Almost surely, 2^421434333 is an apocalyptic number.

It is an amenable number.

421434333 is a deficient number, since it is larger than the sum of its proper divisors (208115841).

421434333 is an equidigital number, since it uses as much as digits as its factorization.

421434333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5202905 (or 5202896 counting only the distinct ones).

The product of its digits is 10368, while the sum is 27.

The square root of 421434333 is about 20528.8658478738. The cubic root of 421434333 is about 749.7387730245.

Adding to 421434333 its reverse (333434124), we get a palindrome (754868457).

The spelling of 421434333 in words is "four hundred twenty-one million, four hundred thirty-four thousand, three hundred thirty-three".