434330421 has 16 divisors (see below), whose sum is σ = 662573184. Its totient is φ = 247912704.

The previous prime is 434330417. The next prime is 434330423. The reversal of 434330421 is 124033434.

It is not a de Polignac number, because 434330421 - 2² = 434330417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 434330391 and 434330400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434330423) 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 15 ways as a sum of consecutive naturals, for example, 8641 + ... + 30713.

It is an arithmetic number, because the mean of its divisors is an integer number (41410824).

Almost surely, 2^434330421 is an apocalyptic number.

It is an amenable number.

434330421 is a deficient number, since it is larger than the sum of its proper divisors (228242763).

434330421 is a wasteful number, since it uses less digits than its factorization.

434330421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23020.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 434330421 is about 20840.5955049274. The cubic root of 434330421 is about 757.3095200134.

Adding to 434330421 its reverse (124033434), we get a palindrome (558363855).

The spelling of 434330421 in words is "four hundred thirty-four million, three hundred thirty thousand, four hundred twenty-one".